5-2 E
Pin No.
Pin name
I/O
Function
71
XWRH
O
H
igh byte write enable signal output (16 bit and 8 bit)
72
XWRL
-
Not used
73
NMIX
-
Not used (f
ixed a
t
“H
”)
74
HSTX
-
Not used (f
ixed a
t
“H
”)
75
VSS
-
Ground
76
XFRRST
I
Reset signal input from IF CON
77
CPUCK
O
CPU clock signal output
78
OCSW2
-
Not used
79
XD
A
C
S
O
Chip select signal output to D
A
C
(2c
h, 6c
h)
80
VESCS/X39CS
O
Chip select signal output to DSP
81
48/44.1K
O
PLL FS control signal output
82
WIDE
O
W
IDE select signal output
83
MAMUTE
O
Audio mute signal output
84
XLDON
O
LD control signal output
85-92
HD0-HD7
I/O
Da
ta b
us D0-D7 (16 bit onl
y)
93-100
HD8-HD15
I/O
Da
ta b
us D8-D15 (16 bit) ,
D0-D7 (8 bit)
101
VSS
-
Ground
102-109
HA0-HA7
O
Ad
dr
ess b
us
A00-A07
110
VCC
-
P
o
w
er suppl
y
111-118
HA8-HA15
O
A
d
d
ress b
us
A08-A15
119
VSS
-
Ground
120
HA16
O
Ad
dr
ess b
us
A16
