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Toshiba XM-1902B CD-ROM
Drive Connectors

Figure 1.XM-1902B CD-ROM Rear Panel - Connectors

XM1902B Rear Panel

ATAPI Connector The XM-1902B CD-ROM is connected to your computer system through the ATAPI connector.

Table 1.Interface Pin Assignments

PIN NO. I/O SIGNAL NAME PIN NO. I/O SIGNAL NAME
1 O Audio L-CH 2 O Audio R-CH
3   Audio Ground 4   Digital Ground
5 I /RESET 6 I/O DD8
7 I/O DD7 8 I/O DD9
9 I/O DD6 10 I/O DD10
11 I/O DD5 12 I/O DD11
13 I/O DD4 14 I/O DD12
15 I/O DD3 16 I/O DD13
17 I/O DD2 18 I/O DD14
19 I/O DD1 20 I/O DD15
21 I/O DD0 22 O DMARQ
23   Digital Ground 24 I /DIOR: / HDMARDT: HSTROBE
25 I /DIOW:STOP 26   Digital Ground
27 O IORDY: / DDMARDY: DSTROBE 28 I /DMACK
29 O INTRQ 30 O /IOCS16
31 I DA1 32 I/O /PDIAG
33 I DA0 34 I DA2
35 I /CS1FX 36 I /CS3FX
37 I/O /DASP 38 I +5V (Motor)
39 I +5V (Motor) 40 I +5V (Motor)
41 I +5V (Logic) 42 I +5V (Logic)
43   Ground 44   Ground
45   Ground 46   Ground
47 I Device Config. (CSEL) 48   Ground
49    N.C. (Open) 50 I Vender Unique

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