Sony RM-AX4000 Service Manual page 15

• IC Pin Function Description
MAIN BOARD IC1 uPD78F0547GC(T)-UBT-A (SYSTEM CONTROLLER)
Pin No. Pin Name
1 P120/REF_I
2 P47/LCD_DB7
3 P46/LCD_DB6
4 P45/LCD_DB5
5 P44/LCD_DB4
6 P43/LCD_DB3
7 P42/LCD_DB2
8 P41/LCD_DB1
9 P40/LCD_DB0
10 RESET_I
11 P124/OSC
12 P123/OSC_I
13 IC/FLMD0
14 P122/OSC_O
15 P121/OSC_I
16 REGC
17 VSS
18 EVSS
19 VDD
20 EVDD
21 P60/SCL0
22 P61/SDA0
23 P62/EXSCL0
24 P63/KEYS_O
25 P33/INTP4
26 P64/KEYS_O
27 P65/KEYS_O
28 P66/KEYS_O
29 P67/KEYS_O
30 P77/KEYD_I
31 P76/KEYD_I
32 P75/KEYD_I
33 P74/KEYD_I
34 P73/KEYD_I
35 P72/KEYD_I
36 P71/KEYD_I
37 P70/KEYD_I
38 P06/TIO11/TO01
39 P05/TIO00/SS111
40 P32/USB_SH_INT_I
41 P31/INTP2_I
42 P50
43 P51
44 P52/PWEN_O
45 P53
46 P30/INTP1/VBUS_I
47 P17/PWM_0
I/O
I External Low Voltage detective signal input
O LCD data output
O LCD data output
O LCD data output
O LCD data output
O LCD data output
O LCD data output
O LCD data output
O LCD data output
I Reset signal input
O Sub clock output (32.768kHz)
I Sub clock input (32.768kHz)
— FLASH writing signal
O Main clock output (20MHz)
I Main clock input (20MHz)
— Not used
— Ground terminal
— Ground terminal
— Power Supply (+5V)
— Power Supply (+5V)
I Connected to +5V
I Connected to +5V
I Connected to +5V
O Key scan output
I Connected to +5V
O Key scan output
O Key scan output
O Key scan output
O Key scan output
I Key data input
I Key data input
I Key data input
I Key data input
I Key data input
I Key data input
I Key data input
I Key data input
O USB RESET signal output
I Connected to +5V
I USB interrupt signal input
I TOUCH PANEL interrupt signal input
I Internal writing control signal input
I Connected to +5V
O LED Back Light PWEN signal output
I Connected to +5V
I VBUS connecter select signal input
O LED Back Light PWM signal output
Description
RM-AX4000
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