Sony CDX-GT303MP - Page 26

CDX-GT25MPW/GT30MP/GT250MP/GT257ME/GT300MP/GT303MP
26
• IC Pin Function Description
MAIN BOARD (2/3) IC401 R5F3650KBDZ98FA (SYSTEM CONTROL)
Pin No. Pin Name I/O Description
1 LCD_SO O Serial data signal output to LCD driver
2 LCD_CLK O Serial clock signal output to LCD driver
3
NOSE_SW I Front-panel detach/attach detect signal input/output"L":with Panel,"H":without Panel
4 SIRCS I Remote-control signal (infrared) input
5 UNISO O SONY-BUS data output
6 UNISI I SONY-BUS data input
7 UNISCK O SONY-BUS clock output
8 BYTE I MCU setting terminal
9 CNVSS I Input pin to switch U-com mode
10 XIN I Low-speed clock input (32.768kHz)
11 XOUT O Low-speed clock output (32.768kHz)
12
RESET I U-com reset signal input
13 OSCOUT O High-speed clock output (11.06MHz)
14 VSS — Ground pin
15 OSCIN I High-speed clock input (11.06MHz)
16 VCC1 — Power supply pin (+3.3 V)
17 NMI I MCU setting terminal
18
RC_IN1 I Rotary commander SHIFT key signal input
19 BUIN I Backup power detect signal input
20
SYSRST O SYSTEM RESET signal output Not used.(Open)
21
BUSON O VBUS power control signal output Not used.(Open)
22 DEC_SI I Decoder data signal input
23 DEC_SCK O Decoder clock signal output
24 DEC_SO O Decoder data signal output
25 to 27 NCO O Not used. (Open)
28 BEEP O BEEP signal output to power amplifi er
29 I2C_SCK O IIC bus serial clock output
30 I2C_SIO I/O IIC bus serial data input/output
31 FW_TXD O Flash software (Serial data output) /System monitor signal output
32 FW_RXD I Flash software (Serial data input)
33 FW_CLK I Serial clock input for synchronous writing
34 FW_BUSY O Busy signal output for synchronous fl ashing
35 BT_API_TX O Not used. (Open)
36 BT_API_RX O Not used. (Open)
37 DRV_ON O Driver control signal output
38 MEC_LOAD O CD mechadeck moter (Load) signal output
39 MEC_EJECT O CD mechadeck moter (Eject) signal output
40 CDON_1500MV O Servo power control signal output
41 EPM O EPM signal output
42
MEC_INSW I Mechadeck in_switch signal input
43
MEC_LIMIT I Mechadeck (OP) limit_switch signal input
44
MEC_DSW I Mechadeck D_switch signal input
45 DEC_INT I Decoder request signal input
46 CE O Chip enable signal output
47, 48 NCO O Not used. (Open)
49 DEC_XMUTE O Decoder mute signal output
50 NCO O Not used. (Open)
51 CD_ZDET I CD zero detect signal input
52 CD_XCCE O CD servo/decoder chip enable signal output
53 DEC_SSTBY O Decoder SRAM Standby signal output
54 DEC_RST O Decoder Reset signal output
55 BT_ATT_XEN O CD mute signal output Not used.(Open)
56 TELATT I TELEPHON ATT detect signal input
57
ACC_IN I Accessory power detect signal input
58 ATT O Audio mute control signal output
59 DIAG I POWER amplifi er status signal input
jomi