Sony SPP-SS965 - Cordless Telephone, Service Manual

Page: 41 / 56

– 55 –
7-16. IC PIN FUNCTION DESCRIPTION
•
HAND MAIN BOARD IC501 M70012-11 (ASIC)
Pin No. Pin Name I/O Function
1 KEYPADB5 O
Key output terminal Not used (open)
2 D0 I
Selection input of the model Not used (open)
3, 4 D1, D2 I/O Not used (open)
5 D3 I
Selection input of the test mode Not used (open)
6 to 9 D4 to D7 O
Serial data output to the liquid crystal display unit (LCD501)
10 to 15
KEYPADI0 to
KEYPADI5
I
Key return signal input from the key matrix “L” input when key pressing
16 VSSC —
Ground terminal (for core)
17 VDDC —
Power supply terminal (+5V) (for core)
18 VDDP — Power supply terminal (+5V) (for pad)
19 VSSC —
Ground terminal (for core)
20 OSCI I
Sub system clock input terminal (32.768 kHz) Not used (open)
21 OSCO O Sub system clock output terminal (32.768 kHz) Not used (open)
22
KEYPADB3
O
Key send signal output to the key matrix
23
KEYPADB4
O
Key output terminal Not used (open)
24 CDCDATAI I Transmit data input from the CODEC (IC401)
25 CDCDATAO O
Receive data output to the CODEC (IC401)
26 CDCMCLK O
Master clock signal output to the CODEC (IC401)
27 RESETO O Reset signal output to the CODEC (IC401) “L”: reset
28 CDCICLK O
Interface clock signal output to the CODEC (IC401)
29 VDDP —
Power supply terminal (+5V) (for pad)
30 VSSP — Ground terminal (for pad)
31 KEYPADB2 O
Key send signal output to the key matrix
32 CDCFRAME O
Frame output to the CODEC (IC401)
33 ARTI I ART input from the base unit
34 ARTO O
ART output terminal Not used (open)
35, 36
KEYPADB1,
KEYPADB0
O Key send signal output to the key matrix
37 GPIOB7 O Not used (open)
38 VDDP —
Power supply terminal (+5V) (for pad)
39 LCDCS O
Chip select signal output to the liquid crystal display unit (LCD501) “L” active
40 VDDC — Power supply terminal (+5V) (for core)
41 VSSC —
Ground terminal (for core)
42 TEST I
Setting terminal for the test mode “L”: test mode Normally: fixed at “H”
43 LNAATN O
LNA gain selection signal output to the RF unit “H”: low gain
44 RXEN O
RX system enable signal output to the RF unit “H”: enable
45 VDDA —
Power supply terminal (+5V) (for analog)
46 VSSA —
Ground terminal (for analog)
47 VDDA — Power supply terminal (+5V) (for analog)
48 VSSA —
Ground terminal (for analog)
49 TXDATA O
Transmit data output to the RF unit
50 VRP O Analog reference voltage output terminal
51 RXIP I
Receive data (I positive) input from the RF unit
52 RXIN I
Receive data (I negative) input from the RF unit
www. xiaoyu163. com
QQ 376315150
9 9
2
8 9
4 2
9 8
TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com