40-Pin IDE Connector
http://www.motorola.com/computer/literature
5-15
5
29
reserved
Gnd
30
31
INTRQ
IOCS16-
32
33
ADDR1
PDIAG-
34
35
ADDR0
ADDR2
36
37
CS!FX-
CS3FX-
38
39
DASP-
Gnd
40
IDE port
TTL levels
DMARQ
DMA request
DMACK_L
DMA acknowledge
DIOR_L
I/O read
DIOW_L
I/O write
IORDY
indicates drive ready for I/O
DD(15:0)
data lines
DRESET_L
reset signal to drive
CS1FX_L
chip select drive 0 or command register block select
CS3FX_L
chip select drive 1 or command register block select
DA(2:0)
drive register and data port address lines
INTRQ
drive interrupt request
Table 5-7. IDE Connect Pin Assignment (continued)
Pin
Signal
Signal
Pin