參數(shù)資料
型號: LC8954
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP128
封裝: QFP-128
文件頁數(shù): 6/7頁
文件大?。?/td> 50K
代理商: LC8954
No. 4127-6/7
LC8954
Continued from preceding page.
Type: I: Input pin, O: Output pin, B: Bi-directional pin, P: Power supply pin
Pin No.
Pin
Type
Function
81
VSS
P
82
D1
B
83
D2
B
Host CPU data bus
84
D3
B
85
D4
B
86
VSS
P
87
VDD
P
88
D5
B
89
D6
B
Host CPU data bus
90
D7
B
91
D8
B
92
VSS
P
93
D9
B
94
D10
B
Host CPU data bus
95
D11
B
96
D12
B
97
VSS
P
98
D13
B
99
D14
B
Host CPU data bus
100
D15
B
101
ZHINT0
O
Host CPU interrupt
102
ZUDS
I
High-order data strobe input
103
ZLDS
I
Low-order data strobe input
104
ZAS
I
Address strobe signal
105
ZCSCDIC
I
Chip select from the host CPU
106
A1
I
107
A2
I
108
A3
I
Host CPU address
109
A4
I
110
A5
I
111
R/W
I
Read/write input
112
ZDTACK
B
Data acknowledge signal
113
VDD
P
114
CPUCLK
I
CPU clock input
115
CDPORT0
B
General-purpose I/O signals
116
CDPORT1
B
117
ZHINT1
O
Host CPU interrupt
118
ZDONE
B
DMA transfer pin: Open drain with built-in pull-up resistors
119
ZACK0
I
120
ZACK1
I
121
ZRDY0
O
For DMA transfer pins
122
ZRDY1
O
123
ZDRQ0
O
124
ZDRQ1
O
125
BUFFULL
O
126
DATAEMP
O
SRAM status
127
UNDFLOW
O
128
INIT
I
Gain control register initialization input
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