ICD-P110VTP - Sony Audio Service Manual (repair manual). Page 23

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23
ICD-P110VTP
• IC Pin Function Description
IC702  MB91233LLGA-G-107E1 (SYSTEM CONTROL, LCD DRIVER) (MAIN BOARD)
Pin No.
Pin Name
I/O
Description
1
DSPSCK
O
Serial clock signal output
2
FLMCLE
O
Command latch enable signal output
3 to 10
DATA0 to 7
I/O
Data input/output 0 to 7
11
XFLMCS0
O
Chip enable signal output
12
XDSPIFREQ
O
System clock control signal output
13
X0A32K
I
32 kHz signal input
14
X1A32K
O
32 kHz signal output (Fixed at H in this set)
15
VCC3BCK
Power supply pin for internal logic backup
16
VSS
Ground
17
VCC3LGC
Power supply pin for internal logic
18
BEEP
O
Beep signal output
19
XFLMWE
O
Write enable signal output
20
XFLMRE
O
Read enable signal output
21
FLMALE
O
Address latch enable signal output
22
FLMRB
I
Ready/busy signal input
23
XFLMWP
O
Write protect signal output
24 to 30
USBADR0 to 6
O
Address signal output 0 to 6
31
XUSBCS
O
Chip select signal output
32
XUSBRD
O
Read strobe signal output
33
XUSBRST
O
Reset signal output
34
XUSBLWR
O
Low write strobe signal output
35
XFLMPWR
O
Power supply control signal output
36
AVCC
Power supply pin for analog
37
AVREF
Reference voltage supply pin for analog
38
AVSS
Ground for analog
39
BATT
I
Dry battery voltage detection signal input
40, 41
KEYIN0, 1
I
Key A/D input 0, 1
42
XBATTEN
O
Dry battery detection control signal output
43
HPJACK/MICSENS
I
Earphone jack/Mic sensitivity select signal input
44
HPMUTE
I
Earphone mute signal input
45
MICAMPPWR
I
Mic amplifier power supply control signal input
46
LMUTE
O
Line mute signal output
47
VSS
Ground
48
AVCC3IO
Power supply pin
49 to 74
SEG0 to 25
O
LCD segment signal output 0 to 25
75
DVCC
Power supply pin for digital
76
DVSS
Ground for digital
77 to 82
SEG26 to 31
O
LCD segment signal output 26 to 31
83 to 86
COM0 to 3
O
LCD common signal output 0 to 3
87
MOD2
I
Operation mode signal input 2
88, 89
MOD1, 0
I
Operation mode signal input 1, 0 (Connect to ground in this set)
90
XCPURST
I
CPU external reset signal input
91 to 94
LCDV0 to 3
LCD reference voltage supply pin
95
RX
I
Input port (Flash write RX)
96
TX
O
Output port (Flash write TX)
97
HPAMPPWR
O
Earphone amplifier power control signal output
98
RTCSIN
I
Serial data input
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