25
Pin Types: P = Power, I = Input, O = Output, I/O = Input/Output
* I/O function is selectable. See Pin description for more details.
Notes :
1. Open Drain
2. Three State
Pin No.
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
Name
HD1
VSSE
HD13
ARST-
HD2
HD12
HD3
VSSI
HD11
VSSE
HD4
HD10
HD5
HD9
HD6
VSSE
HD8
HD7
PRST-
RD4
RD5
RD7
Type
I/O
P
I/O
O
(1)
I/O
I/O
I/O
P
I/O
P
I/O
I/O
I/O
I/O
I/O
P
I/O
I/O
I
I/O
I/O
I/O
Comments
IDE Host Data Bus
IDE Host Data Bus
ATAPI Reset
IDE Host Data Bus
IDE Host Data Bus
IDE Host Data Bus
VSSE
IDE Host Data Bus
Chip Reset
RAM Data Bus
Pin No.
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Name
RD6
VSSE
RD3
RD2
RAD10
ROE-
RD0
VSSE
RD1
RWE-
VDD
RAD14
RAD9
RAD8
RAD7
VSSE
RAD6
RAD5
RAD4
RAD0
RAD1
RAD2
Type
I/O
P
I/O
I/O
O
(1)
I/O
I/O
P
I/O
O
P
O
O
O
O
P
O
O
O
O
O
O
Comments
RAM Data Bus
RAM Data Bus
RAM Address Bus
RAM Read Enable
RAM Data Bus
RAM Data Bus
RAM Write Enable
RAM Address Bus
RAM Address Bus
