Difference between revisions of "Expansion Port"
From Archaic Pixels
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{{:Styled Table}} | {{:Styled Table}} | ||
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It also has access to the communications between the video chip and the CPU. | It also has access to the communications between the video chip and the CPU. | ||
| − | <table class="connector"><tr valign="top"><th bgcolor="#bbbbbb"><br></th><th bgcolor="#bbbbbb">1</th><th bgcolor="#bbbbbb">2</th><th bgcolor="#bbbbbb">3</th><th bgcolor="#bbbbbb">4</th><th bgcolor="#bbbbbb">5</th><th bgcolor="#bbbbbb">6</th><th bgcolor="#bbbbbb">7</th><th bgcolor="#bbbbbb">8</th><th bgcolor="#bbbbbb">9</th><th bgcolor="#bbbbbb">10</th><th bgcolor="#bbbbbb">11</th><th bgcolor="#bbbbbb">12</th><th bgcolor="#bbbbbb">13</th><th bgcolor="#bbbbbb">14</th><th bgcolor="#bbbbbb">15</th><th bgcolor="#bbbbbb">16</th><th bgcolor="#bbbbbb">17</th><th bgcolor="#bbbbbb">18</th><th bgcolor="#bbbbbb">19</th><th bgcolor="#bbbbbb">20</th><th bgcolor="#bbbbbb">21</th><th bgcolor="#bbbbbb">22</th><th bgcolor="#bbbbbb">23</th></tr><tr valign="top"><th bgcolor="#bbbbbb">C</th><td bgcolor="#ff9966">SNDR</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#ccccff">HuD</td><td bgcolor="#00dcff">CEK</td><td bgcolor="#e6ff00">A17</td><td bgcolor="#e6ff00">A13</td><td bgcolor="#e6ff00">A11</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#3deb3d">D2</td><td bgcolor="#3deb3d">D4</td><td bgcolor="#3deb3d">D6</td><td bgcolor="#3deb3d">D7</td><td bgcolor="#e6ff00">A1</td><td bgcolor="#e6ff00">A3</td><td bgcolor="#e6ff00">A4</td><td bgcolor="#e6ff00">A6</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#e6ff00">A15</td><td bgcolor="#e6ff00">A19</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#444444"><font color="white">Vout</font></td><td bgcolor="#ff9966">Sync</td><td bgcolor="#ff9966">Blu</td></tr><tr valign="top"><th bgcolor="#bbbbbb">B</th><td bgcolor="#ff9966">SNDin</td><td bgcolor="#ccccff">CDD</td><td bgcolor="#ccccff">HSM</td><td bgcolor="#ccccff">/WR</td><td bgcolor="#00dcff">VU</td><td bgcolor="#e6ff00">A8</td><td bgcolor="#ccccff">/OE</td><td bgcolor="#3deb3d">D0</td><td bgcolor="#3deb3d">D3</td><td bgcolor="#3deb3d">D5</td><td bgcolor="#00dcff">HSn</td><td bgcolor="#e6ff00">A0</td><td bgcolor="#e6ff00">A2</td><td bgcolor="#00dcff">VD6</td><td bgcolor="#e6ff00">A5</td><td bgcolor="#e6ff00">A7</td><td bgcolor="#e6ff00">A12</td><td bgcolor="#e6ff00">A16</td><td bgcolor="#ccccff">A20</td><td bgcolor="#00dcff">/RDY</td><td bgcolor="#ccccff">IRQ2</td><td bgcolor="#ccccff">/RST</td><td bgcolor="#ff9966">Grn</td></tr><tr valign="top"><th bgcolor="#bbbbbb">A</th><td bgcolor="#ff9966">SNDL</td><td bgcolor="#444444"><font color="white">Vout</font></td><td bgcolor="#00dcff">VS</td><td bgcolor="#e6ff00">A18</td><td bgcolor="#e6ff00">A14</td><td bgcolor="#e6ff00">A9</td><td bgcolor="#e6ff00">A10</td><td bgcolor="#3deb3d">D1</td><td bgcolor="#00dcff"> | + | <table class="connector"><tr valign="top"><th bgcolor="#bbbbbb"><br></th><th bgcolor="#bbbbbb">1</th><th bgcolor="#bbbbbb">2</th><th bgcolor="#bbbbbb">3</th><th bgcolor="#bbbbbb">4</th><th bgcolor="#bbbbbb">5</th><th bgcolor="#bbbbbb">6</th><th bgcolor="#bbbbbb">7</th><th bgcolor="#bbbbbb">8</th><th bgcolor="#bbbbbb">9</th><th bgcolor="#bbbbbb">10</th><th bgcolor="#bbbbbb">11</th><th bgcolor="#bbbbbb">12</th><th bgcolor="#bbbbbb">13</th><th bgcolor="#bbbbbb">14</th><th bgcolor="#bbbbbb">15</th><th bgcolor="#bbbbbb">16</th><th bgcolor="#bbbbbb">17</th><th bgcolor="#bbbbbb">18</th><th bgcolor="#bbbbbb">19</th><th bgcolor="#bbbbbb">20</th><th bgcolor="#bbbbbb">21</th><th bgcolor="#bbbbbb">22</th><th bgcolor="#bbbbbb">23</th></tr><tr valign="top"><th bgcolor="#bbbbbb">C</th><td bgcolor="#ff9966">SNDR</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#ccccff">HuD</td><td bgcolor="#00dcff">CEK</td><td bgcolor="#e6ff00">A17</td><td bgcolor="#e6ff00">A13</td><td bgcolor="#e6ff00">A11</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#3deb3d">D2</td><td bgcolor="#3deb3d">D4</td><td bgcolor="#3deb3d">D6</td><td bgcolor="#3deb3d">D7</td><td bgcolor="#e6ff00">A1</td><td bgcolor="#e6ff00">A3</td><td bgcolor="#e6ff00">A4</td><td bgcolor="#e6ff00">A6</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#e6ff00">A15</td><td bgcolor="#e6ff00">A19</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#444444"><font color="white">Vout</font></td><td bgcolor="#ff9966">Sync</td><td bgcolor="#ff9966">Blu</td></tr><tr valign="top"><th bgcolor="#bbbbbb">B</th><td bgcolor="#ff9966">SNDin</td><td bgcolor="#ccccff">CDD</td><td bgcolor="#ccccff">HSM</td><td bgcolor="#ccccff">/WR</td><td bgcolor="#00dcff">VU</td><td bgcolor="#e6ff00">A8</td><td bgcolor="#ccccff">/OE</td><td bgcolor="#3deb3d">D0</td><td bgcolor="#3deb3d">D3</td><td bgcolor="#3deb3d">D5</td><td bgcolor="#00dcff">HSn</td><td bgcolor="#e6ff00">A0</td><td bgcolor="#e6ff00">A2</td><td |
| + | bgcolor="#00dcff">VD6</td><td bgcolor="#e6ff00">A5</td><td bgcolor="#e6ff00">A7</td><td bgcolor="#e6ff00">A12</td><td bgcolor="#e6ff00">A16</td><td bgcolor="#ccccff">A20</td><td bgcolor="#00dcff">/RDY</td><td bgcolor="#ccccff">IRQ2</td><td bgcolor="#ccccff">/RST</td><td bgcolor="#ff9966">Grn</td></tr><tr valign="top"><th bgcolor="#bbbbbb">A</th><td bgcolor="#ff9966">SNDL</td><td bgcolor="#444444"><font color="white">Vout</font></td><td bgcolor="#00dcff">VS</td><td bgcolor="#e6ff00">A18</td><td bgcolor="#e6ff00">A14</td><td bgcolor="#e6ff00">A9</td><td bgcolor="#e6ff00">A10</td><td bgcolor="#3deb3d">D1</td><td bgcolor="#00dcff">PCC</td><td bgcolor="#00dcff">VSn</td><td bgcolor="#444444"><font color="white">Vin</font></td><td bgcolor="#00dcff">VD8</td><td bgcolor="#00dcff">VD7</td><td bgcolor="#444444"><font color="white">Vin</font></td><td bgcolor="#00dcff">VD5</td><td bgcolor="#00dcff">VD4</td><td bgcolor="#00dcff">VD3</td><td bgcolor="#00dcff">VD2</td><td bgcolor="#00dcff">VD1</td><td bgcolor="#00dcff">VD0</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#ff9966">Vid</td><td bgcolor="#ff9966">Red</td></tr><tr><td colspan="24" bgcolor="white"><center><table border="0"><tr><td bgcolor="#444444"> </td><td bgcolor="white">Power</td><td bgcolor="#ff9966"> </td><td bgcolor="white">Audio/Video</td><td bgcolor="#3deb3d"> </td><td bgcolor="white">Data Bus</td><td bgcolor="#e6ff00"> </td><td bgcolor="white">Address Bus</td><td bgcolor="#ccccff"> </td><td bgcolor="white">System Functions</td><td bgcolor="#00dcff"> </td><td bgcolor="white">Video Bus (?)</td></tr></table></center></td></tr></table> | ||
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The PC Engine Shuttle had a cut-down expansion connector. The primary change is the removal of the video bus pins and the IRQ2 pin, preventing the Shuttle from using a CD ROM peripheral. | The PC Engine Shuttle had a cut-down expansion connector. The primary change is the removal of the video bus pins and the IRQ2 pin, preventing the Shuttle from using a CD ROM peripheral. | ||
| − | <table class="connector"><tr valign="top"><th bgcolor="#bbbbbb"></th><th bgcolor="#bbbbbb">1</th><th bgcolor="#bbbbbb">2</th><th bgcolor="#bbbbbb">3</th><th bgcolor="#bbbbbb">4</th><th bgcolor="#bbbbbb">5</th><th bgcolor="#bbbbbb">6</th><th bgcolor="#bbbbbb">7</th><th bgcolor="#bbbbbb">8</th><th bgcolor="#bbbbbb">9</th><th bgcolor="#bbbbbb">10</th><th bgcolor="#bbbbbb">11</th><th bgcolor="#bbbbbb">12</th><th bgcolor="#bbbbbb">13</th><th bgcolor="#bbbbbb">14</th><th bgcolor="#bbbbbb">15</th><th bgcolor="#bbbbbb">16</th></tr><tr valign="top"><th bgcolor="#bbbbbb">C</th><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#444444"><font color="white">Vout</font></td><td bgcolor="#e6ff00">A07</td><td bgcolor="#e6ff00">A04</td><td bgcolor="#e6ff00">A01</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#3deb3d">D2</td><td bgcolor="#3deb3d">D5</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#e6ff00">A10</td><td bgcolor="#e6ff00">A08</td><td bgcolor="#e6ff00">A17</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#ccccff">/OE</td><td bgcolor="#ccccff">CDD</td><td bgcolor="#444444"><font color="white">GND</font></td></tr><tr valign="top"><th bgcolor="#bbbbbb">B</th><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#444444"><font color="white">Vout</font></td><td bgcolor="#e6ff00">A12</td><td bgcolor="#e6ff00">A05</td><td bgcolor="#e6ff00">A02</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#3deb3d">D1</td><td bgcolor="#3deb3d">D4</td><td bgcolor="#3deb3d">D7</td><td bgcolor="#e6ff00">A20</td><td bgcolor="#e6ff00">A09</td><td bgcolor="#e6ff00">A14</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#ccccff">HSM</td><td bgcolor="#444444"><font color="white">Vout</font></td><td bgcolor="#444444"><font color="white">GND</font></td></tr><tr valign="top"><th bgcolor="#bbbbbb">A</th><td bgcolor="#e6ff00">A19</td><td bgcolor="#e6ff00">A16</td><td bgcolor="#e6ff00">A15</td><td bgcolor="#e6ff00">A06</td><td bgcolor="#e6ff00">A03</td><td bgcolor="#e6ff00">A00</td><td bgcolor="#3deb3d">D0</td><td bgcolor="#3deb3d">D3</td><td bgcolor="#3deb3d">D6</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#e6ff00">A11</td><td bgcolor="#e6ff00">A13</td><td bgcolor="#e6ff00">A18</td><td bgcolor="#ccccff">/WR</td><td bgcolor="#444444"><font color="white">Vout</font></td><td bgcolor="#ccccff">/RST</td></tr><tr><td colspan="17" bgcolor="white"><center><table border="0"><tr><td bgcolor="#444444"> </td><td bgcolor="white">Power</td><td bgcolor="#3deb3d"> </td><td bgcolor="white">Data Bus</td><td bgcolor="#e6ff00"> </td><td bgcolor="white">Address Bus</td><td bgcolor="#ccccff"> </td><td bgcolor="white">System Functions</td></tr></table></center></td></tr></table> | + | <table class="connector"><tr valign="top"><th bgcolor="#bbbbbb"></th><th bgcolor="#bbbbbb">1</th><th bgcolor="#bbbbbb">2</th><th bgcolor="#bbbbbb">3</th><th bgcolor="#bbbbbb">4</th><th bgcolor="#bbbbbb">5</th><th bgcolor="#bbbbbb">6</th><th bgcolor="#bbbbbb">7</th><th bgcolor="#bbbbbb">8</th><th bgcolor="#bbbbbb">9</th><th bgcolor="#bbbbbb">10</th><th bgcolor="#bbbbbb">11</th><th bgcolor="#bbbbbb">12</th><th bgcolor="#bbbbbb">13</th><th bgcolor="#bbbbbb">14</th><th bgcolor="#bbbbbb">15</th><th bgcolor="#bbbbbb">16</th></tr><tr valign="top"><th bgcolor="#bbbbbb">C</th><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#444444"><font color="white">Vout</font></td><td bgcolor="#e6ff00">A07</td><td bgcolor="#e6ff00">A04</td><td bgcolor="#e6ff00">A01</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#3deb3d">D2</td><td bgcolor="#3deb3d">D5</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#e6ff00">A10</td><td bgcolor="#e6ff00">A08</td><td bgcolor="#e6ff00">A17</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#ccccff">/OE</td><td bgcolor="#ccccff">CDD</td><td bgcolor="#444444"><font color="white">GND</font></td></tr><tr valign="top"><th bgcolor="#bbbbbb">B</th><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#444444"><font color="white">Vout</font></td><td bgcolor="#e6ff00">A12</td><td bgcolor="#e6ff00">A05</td><td bgcolor="#e6ff00">A02</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#3deb3d">D1</td><td bgcolor="#3deb3d">D4</td><td bgcolor="#3deb3d">D7</td><td bgcolor="#e6ff00">A20</td><td bgcolor="#e6ff00">A09</td><td bgcolor="#e6ff00">A14</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#ccccff">HSM</td><td bgcolor="#444444"><font color="white">Vout</font></td><td bgcolor="#444444"><font color="white">GND</font></td></tr><tr valign="top"><th bgcolor="#bbbbbb">A</th><td bgcolor="#e6ff00">A19</td><td bgcolor="#e6ff00">A16</td><td |
| + | bgcolor="#e6ff00">A15</td><td bgcolor="#e6ff00">A06</td><td bgcolor="#e6ff00">A03</td><td bgcolor="#e6ff00">A00</td><td bgcolor="#3deb3d">D0</td><td bgcolor="#3deb3d">D3</td><td bgcolor="#3deb3d">D6</td><td bgcolor="#444444"><font color="white">GND</font></td><td bgcolor="#e6ff00">A11</td><td bgcolor="#e6ff00">A13</td><td bgcolor="#e6ff00">A18</td><td bgcolor="#ccccff">/WR</td><td bgcolor="#444444"><font color="white">Vout</font></td><td bgcolor="#ccccff">/RST</td></tr><tr><td colspan="17" bgcolor="white"><center><table border="0"><tr><td bgcolor="#444444"> </td><td bgcolor="white">Power</td><td bgcolor="#3deb3d"> </td><td bgcolor="white">Data Bus</td><td bgcolor="#e6ff00"> </td><td bgcolor="white">Address Bus</td><td bgcolor="#ccccff"> </td><td bgcolor="white">System Functions</td></tr></table></center></td></tr></table> | ||
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Most of the functions in the PCE chart are active low. | Most of the functions in the PCE chart are active low. | ||
| − | System Functions | + | === System Functions === |
| − | {| class=" | + | {| class="styled_table_min" |
|- | |- | ||
! OE | ! OE | ||
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|- | |- | ||
! CDD | ! CDD | ||
| − | | CD Detect (K7 | + | | CD Detect (aka K7 and Input Bit 7) || Used for detecting the presence of a CD expansion unit |
|- | |- | ||
! HuD | ! HuD | ||
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|- | |- | ||
! HSM | ! HSM | ||
| − | | High Speed Mode || Indicates or determines whether the system is running at full speed (7. | + | | High Speed Mode || Indicates or determines whether the system is running at full speed (7.15909 MHz)or low speed (1.7897725 MHz). |
|- | |- | ||
! RST | ! RST | ||
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|- | |- | ||
! /RDY | ! /RDY | ||
| − | | Ready | + | | Ready || |
|- | |- | ||
! IRQ2 | ! IRQ2 | ||
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NOTE: All system functions are active-low. If incorrect, please correct the wiki. | NOTE: All system functions are active-low. If incorrect, please correct the wiki. | ||
| − | Power | + | |
| − | {| class=" | + | === Power === |
| + | {| class="styled_table_min" | ||
|- | |- | ||
! Vout | ! Vout | ||
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| − | Audio | + | === Audio === |
| − | {| class=" | + | {| class="styled_table_min" |
|- | |- | ||
! SNDR | ! SNDR | ||
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|} | |} | ||
| − | Video Bus | + | |
| − | {| class=" | + | === Video Bus === |
| + | {| class="styled_table_min" | ||
|- | |- | ||
! HSn | ! HSn | ||
| − | | Horizontal Sync || | + | | Horizontal Sync || |
|- | |- | ||
! VSn | ! VSn | ||
| − | | Vertical Sync || | + | | Vertical Sync || |
|- | |- | ||
| − | ! | + | ! PCC |
| − | | | + | | Pixel Clock || Possible values: 5.3693175 / 7.15909 / 10.738635 MHz |
|- | |- | ||
! VS | ! VS | ||
| − | | Unknown || | + | | Unknown || |
|- | |- | ||
! VU | ! VU | ||
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| Video Bus line 8 || high for sprite/border pixels, low for background pixels | | Video Bus line 8 || high for sprite/border pixels, low for background pixels | ||
|} | |} | ||
| − | NOTE: VD0 - VD8 are directly connected to the [[ | + | NOTE: VD0 - VD8 are directly connected to the [[HuC6260]] VCE |
[http://www.gamesx.com/misctech/pcebp.php Information gathered from GameSX.com] | [http://www.gamesx.com/misctech/pcebp.php Information gathered from GameSX.com] | ||
Latest revision as of 08:01, 2 May 2014
Contents
The PC Engine Expansion Port
The PC Engine expansion includes pins for just about everything, including the entire cartridge port, RGB, audio, video and a few other things. It also has access to the communications between the video chip and the CPU.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | SNDR | GND | HuD | CEK | A17 | A13 | A11 | GND | D2 | D4 | D6 | D7 | A1 | A3 | A4 | A6 | GND | A15 | A19 | GND | Vout | Sync | Blu | ||||||||||||
| B | SNDin | CDD | HSM | /WR | VU | A8 | /OE | D0 | D3 | D5 | HSn | A0 | A2 | VD6 | A5 | A7 | A12 | A16 | A20 | /RDY | IRQ2 | /RST | Grn | ||||||||||||
| A | SNDL | Vout | VS | A18 | A14 | A9 | A10 | D1 | PCC | VSn | Vin | VD8 | VD7 | Vin | VD5 | VD4 | VD3 | VD2 | VD1 | VD0 | GND | Vid | Red | ||||||||||||
| |||||||||||||||||||||||||||||||||||
The PC Shuttle Expansion Port
The PC Engine Shuttle had a cut-down expansion connector. The primary change is the removal of the video bus pins and the IRQ2 pin, preventing the Shuttle from using a CD ROM peripheral.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | GND | Vout | A07 | A04 | A01 | GND | D2 | D5 | GND | A10 | A08 | A17 | GND | /OE | CDD | GND | ||||||||
| B | GND | Vout | A12 | A05 | A02 | GND | D1 | D4 | D7 | A20 | A09 | A14 | GND | HSM | Vout | GND | ||||||||
| A | A19 | A16 | A15 | A06 | A03 | A00 | D0 | D3 | D6 | GND | A11 | A13 | A18 | /WR | Vout | /RST | ||||||||
| ||||||||||||||||||||||||
Label Explanations
Most of the functions in the PCE chart are active low.
System Functions
| OE | Output Enable | Chip and Output Enable are both signals used with ROM chips to activate the device, and enable output respectively. |
|---|---|---|
| CDD | CD Detect (aka K7 and Input Bit 7) | Used for detecting the presence of a CD expansion unit |
| HuD | HuCard Detect | Indicates the presence of a HuCard in the slot (cart port pin 1 is low) |
| HSM | High Speed Mode | Indicates or determines whether the system is running at full speed (7.15909 MHz)or low speed (1.7897725 MHz). |
| RST | Reset | Reset resets the machine |
| R/W | Read / Write | When set low the data bus is set to WRITE mode. |
| /RDY | Ready | |
| IRQ2 | Interrupt 2 | Used to trigger events in the HuC6270 |
| A20 is often used as CE | Chip Enable | Chip and Output Enable are both signals used with ROM chips to activate the device, and enable output respectively. |
NOTE: All system functions are active-low. If incorrect, please correct the wiki.
Power
| Vout | Voltage out | +5v power supply for peripherals connected to the expansion port. |
|---|---|---|
| Vin | Voltage in | Sends power directly to the PC Engine, bypassing the power switch. |
Audio
| SNDR | Sound Right | The right audio channel. |
|---|---|---|
| SNDL | Sound Left | The left audio channel. |
| SNDin | Sound Input | Single channel audio input. |
Video Bus
| HSn | Horizontal Sync | |
|---|---|---|
| VSn | Vertical Sync | |
| PCC | Pixel Clock | Possible values: 5.3693175 / 7.15909 / 10.738635 MHz |
| VS | Unknown | |
| VU | Unknown | |
| VD0 - VD3 | Video Bus lines 0 - 3 | four bit pixel value |
| VD4 - VD7 | Video Bus lines 4 - 7 | four bit palette value |
| VD8 | Video Bus line 8 | high for sprite/border pixels, low for background pixels |
NOTE: VD0 - VD8 are directly connected to the HuC6260 VCE
