NCR 7458 Computer Hardware User Manual


 
3-64 Chapter 3: Hardware Service
IDE-1/IDE-2 (CN17, CN14)
Signal Name Pin Pin Signal Name
Reset IDE 1 2 Ground
Host Data 7 3 4 Host Data 8
Host Data 6 5 6 Host Data 9
Host Data 5 7 8 Host Data 10
Host Data 4 9 10 Host Data 11
Host Data 3 11 12 Host Data 12
Host Data 2 13 14 Host Data 13
Host Data 1 15 16 Host Data 14
Host Data 0 17 18 Host Data 15
Ground 19 20 Key
DDRQ0 (DDRQ1) 21 22 Ground
I/O Write# 23 24 Ground
I/O Read# 25 26 Ground
IOCHRDY 27 28 Pull Down
DDACK0 (DDACK1)# 29 30 Ground
IRQ14 (IRQ15) 31 32 I/O CS16
Addr 1 33 34 N/C
Addr 0 35 36 Addr 2
Chip Select 1P (1S)# 37 38 Chip Select 3P (3S)#
Activity# 39 40 Ground