# CDTV Memory Card

              1111111111222222222233333333334
     1234567890123456789012345678901234567890
    +----------------------------------------+
    |OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO|
    +----------------------------------------+

(at the computer)

40 PIN ??? CONNECTOR at the computer.

Pin | Name | Description
--- | --- | ---
1 | D0 | Data Bus 0
2 | D1 | Data Bus 1
3 | D2 | Data Bus 2
4 | D3 | Data Bus 3
5 | D4 | Data Bus 4
6 | D5 | Data Bus 5
7 | D6 | Data Bus 6
8 | D7 | Data Bus 7
9 | D8 | Data Bus 8
10 | D9 | Data Bus 9
11 | D10 | Data Bus 10
12 | D11 | Data Bus 11
13 | D12 | Data Bus 12
14 | D13 | Data Bus 13
15 | D14 | Data Bus 14
16 | D15 | Data Bus 15
17 | A1 | Address Bus 1
18 | A2 | Address Bus 2
19 | A3 | Address Bus 3
20 | A4 | Address Bus 4
21 | A5 | Address Bus 5
22 | A6 | Address Bus 6
23 | A7 | Address Bus 7
24 | A8 | Address Bus 8
25 | A9 | Address Bus 9
26 | A10 | Address Bus 10
27 | A11 | Address Bus 11
28 | A12 | Address Bus 12
29 | A13 | Address Bus 13
30 | A14 | Address Bus 14
31 | A15 | Address Bus 15
32 | A16 | Address Bus 16
33 | A17 | Address Bus 17
34 | R/W | Read/Write (High=Read)
35 | /CSMCOD | Chip Select Odd Bytes
36 | /CSMCEN | Chip Select Even Bytes
37 | VCC | +5 Volts DC
38 | GND | Ground
39 | A18 | Address Bus 18 (Short J16 to connect A18 to processor bus)
40 | A19 | Address Bus 19 (Short J17 to connect A19 to processor bus)

Note: Address space=$E00000-$E7FFFF

Contributor: Joakim Ögren

Source:
Darren Ewaniuk's CDTV Technical Information

Copyright © The Hardware Book Team 1996-2001.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2001-06-08