Intel MB890 J20 CD-In Pin Header, J19 Secondary IDE Connector, Signal Name, Pin #, Installations

INSTALLATIONS

J19: Secondary IDE Connector

Signal Name	Pin #
Reset IDE	1
Host data 7	3
Host data 6	5
Host data 5	7
Host data 4	9
Host data 3	11
Host data 2	13
Host data 1	15
Host data 0	17
Ground	19
DRQ0	21
Host IOW	23
Host IOR	25
IOCHRDY	27
DACK0	29
IRQ14	31
Address 1	33
Address 0	35
Chip select 0	37
Activity	39
Vcc	41
Ground	43

Pin #	Signal Name
2	Ground
4	Host data 8
6	Host data 9
8	Host data 10
10	Host data 11
12	Host data 12
14	Host data 13
16	Host data 14
18	Host data 15
20	Key
22	Ground
24	Ground
26	Ground
28	Host ALE
30	Ground
32	No connect
34	No connect
36	Address 2
38	Chip select 1
40	Ground
42	Vcc
44	N.C.

J20: CD-In Pin Header

Pin #

1

2

3

4

Signal Name

CD Audio R

Ground

Ground

CD Audio L

20 MB890 User’s Manual