Dreamcast:Connector Pinouts: Difference between revisions

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(Add controller and serial port pinout)
(Extension port known pins)
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|-
|-
| 10 || +3.3v
| 10 || +3.3v
|}
== Extension Port ==
Lower leftmost is pin 1, upper rightmost 50. Even pins along the top.
{| class="wikitable"
|+ CN501
|-
! Pin !! Name !! Description !! Pin !! Name !! Description
|-
! 1
| +5v
|
! 2
| +5v
|
|-
! 3
| +5v
|
! 4
| +5v
|
|-
! 5
| {{ActiveLow|MODEMCS}}
| enable modem/lan adapter
! 6
| {{ActiveLow|IRQA}}
| used by modem/lan adapter
|-
! 7
| ?
|
! 8
| ?
|
|-
! 9
| ?
|
! 10
| GND
|
|-
! 11
| GND
|
! 12
| GND
|
|-
! 13
| {{ActiveLow|IRQB}}
| used by broadband adapter
! 14
| {{ActiveLow|LBE}}
{{ActiveLow|WR}}
| Lower byte enable (output)
Write enable when MODEMCS low
|-
! 15
| ?
|
! 16
| {{ActiveLow|UBE}}
{{ActiveLow|RD}}
| Upper byte enable
Read enable when MODEMCS low
|-
! 17
| +3.3v
|
! 18
| +3.3v
|
|-
! 19
| +3.3v
|
! 20
| {{ActiveLow|BTB}}
| Bus termination B
|-
! 21
| {{ActiveLow|AEN}}
| Address enable
! 22
| {{ActiveLow|BTA}}
| Bus Termination A
|-
! 23
| GND
|
! 24
| GND
|
|-
! 25
| AD15
|
! 26
| AD14
|
|-
! ...
|colspan=5 style="text-align:center"|Address and Data multiplexed 16 bit bus
|-
! 39
| AD1
|
! 40
| AD0
|
|-
! 41
| GND
| guard GND of system clock
! 42
| GND
| guard GND of system clock
|-
! 43
| CLK
| System Clock (25MHz
! 44
| GND
|
|-
! 45
| GND
|
! 46
| {{ActiveLow|RESET}}
| System Reset
|-
! 47
| GND
|
! 48
| GND
|
|-
! 49
| ?
|
! 50
| ?
|
|}
|}

Revision as of 08:03, 23 February 2023


TODO: images of connectors.

Controller

Pin Name Description
1 D0 Serial Data
2 +5V
3 GND
4 Sense Grounded by controller
5 D1 Serial Data

A/V Connector

AV Connector
Pin Description TV Mode (V & Y/C Output) SCART (15khz RGBS) VGA (31khz RGBHV)
1 GND Ground
2 Audio Right Audio Right
3 Audio Left Audio Left
4 +12v DC +12v DC
5 +5v DC +5v DC
6 VGA Select N/C N/C GND
7 RGB Select N/C GND GND
8 VSYNC Present but unused Present but unused VGA VSYNC
9 HSYNC Present but unused Present but unused VGA HSYNC
10 CSYNC N/C? CSYNC N/C
11 C S-Video Chroma N/C? N/C
12 Y S-Video Luma N/C? N/C
13 V Composite Video N/C? N/C
14 B N/C Blue Blue
15 G N/C Green Green
16 R N/C Red Red

Serial Port

Pin Description
1 +5v
2 SCK?
3 GND
4 Rx
5 Tx
6 RTS
7 CTS
8 GND?
9 RESET?
10 +3.3v

Extension Port

Lower leftmost is pin 1, upper rightmost 50. Even pins along the top.

CN501
Pin Name Description Pin Name Description
1 +5v 2 +5v
3 +5v 4 +5v
5 MODEMCS enable modem/lan adapter 6 IRQA used by modem/lan adapter
7 ? 8 ?
9 ? 10 GND
11 GND 12 GND
13 IRQB used by broadband adapter 14 LBE

WR

Lower byte enable (output)

Write enable when MODEMCS low

15 ? 16 UBE

RD

Upper byte enable

Read enable when MODEMCS low

17 +3.3v 18 +3.3v
19 +3.3v 20 BTB Bus termination B
21 AEN Address enable 22 BTA Bus Termination A
23 GND 24 GND
25 AD15 26 AD14
... Address and Data multiplexed 16 bit bus
39 AD1 40 AD0
41 GND guard GND of system clock 42 GND guard GND of system clock
43 CLK System Clock (25MHz 44 GND
45 GND 46 RESET System Reset
47 GND 48 GND
49 ? 50 ?
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