Sony XES-Z50 Service Manual page 60

DISPLAY BOARD IC901 HD6473048-DISP01 (DISPLAY CONTROLLER)
Pin No. Pin Name
1 VCC
2 TIR
3 NCO
4 NCO
5 NCO
6 NCO
7 NCO
8 LCD-START
9 LCD-BUSY
10 RESO
11 VSS
12 TX-LCD
13 NCO
14 RX-LCD
15 NCO
16 NCO
17 NCO
18 D0
19 D1
20 D2
21 D3
22 VSS
23 D4
24 D5
25 D6
26 D7
27 D8
28 D9
29 D10
30 D11
31 D12
32 D13
33 D14
34 D15
35 VCC
36 A0
37 A1
38 A2
39 A3
I/O
— Power supply terminal (+5V)
O
LED drive signal output for the TIR indicator "H": LED on Not used
O
O
O Not used (open)
O
O
Output of command transmission start control signal to the LCD controller for liquid crystal
module The OR signal with the busy signal from LCD controller for liquid crystal module is
input to the LCD-BUSY (pin 9)
O
At the start of command transmission, the signal changes like "L"®"H"®"L" so as to be a
start trigger for the LCD controller = DMA controller
Input of busy signal from the LCD controller for liquid crystal module
I
At the timing of "H"®"L", data transmission to LCD controller for liquid crystal module starts
O
Reset signal output to the external device Not used (pull-up)
—
Ground terminal
O Transmit data output to the FM character multiple broadcast display controller (IC802)
O
Not used (open)
I
Receive data input from the FM character multiple broadcast display controller (IC802)
O
O Not used (open)
O
I/O
I/O
Two-way data bus with the flash memory (IC931) and S-RAM (IC932)
I/O
I/O
—
Ground terminal
I/O
I/O
Two-way data bus with the flash memory (IC931) and S-RAM (IC932)
I/O
I/O
I/O
I/O
I/O
I/O
Two-way data bus with the flash memory (IC931), S-RAM (IC932), and LCD controller for
liquid crystal module
I/O
I/O
I/O
I/O
—
Power supply terminal (+5V)
Address signal output terminal This set uses this as a control signal to the LCD controller for
O
liquid crystal module
O
O
Address signal output to the flash memory (IC931) and S-RAM (IC932)
O
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Function