Pioneer VSX-321-K-P Service Manual page 28

1
A • Pin Function
Name
OP_MODE
RSTb
X_IN
X_OUT
P0[7:0]
P1[3:0]
B
P2[7:1]
P3[5:0]
P4[1:0]
P5[7:0]
P6[3:0]
P7[4,1:0]
P8[1:0]
TIM[1:0]
SPI_CLK
SPI_DO
DP
C
DM
ADC[1:0]
VDDA
VSSA
VDD
VSS
D
E
F
28
1
2
In/Out Buffer Type
IN IXDXXP Chip operation mode.
0: Normal mode
1: ICP (In Circuit Flash Programming) mode
IN BDUX8P External Reset (active low) with on-chip pull-up.
When this pin is asserted low, the chip is totally reset.
IN XTL24P 24 MHz crystal input
OUT XTL24P 24 MHz crystal output
IN/OUT BRXX12P GPIO port 0 with programmable Open Drain capability.
IN/OUT BRUX8P GPIO port 1 or Keyboard Interrupt inputs with internal 20 kΩ pull-up to VDD
IN/OUT BRXX8P GPIO port 2 with programmable Open Drain capability.
OD IN/OUT BRXX8P Open Drain I/O port 3. P3[5:0] shared with IIC.
IN/OUT BRXX8P GPIO port 4 or External Interrupt inputs
IN/OUT BRXX24P GPIO port 5 with programmable Open Drain capability; 20 mA drive
IN/OUT BRXX24P GPIO port 6 with 20 mA drive
IN/OUT BRXX8P Open Drain I/O port 7. P7[1:0] shared with Serial Port. P7[4] share with CIR.
IN/OUT BRXX8P GPIO port 8 with programmable Open Drain capability.
P8[7] and P8[3:0] share with PWM
IN/OUT BRXX8P Timer In/Out or GPIO
IN/OUT BRXX8P SPI Clock Out or General Purpose Output
IN/OUT BRXX8P SPI Data In/Out or General Purpose Output
IN/OUT USB USB D+ In/Out or GPO
IN/OUT USB USB D- In/Out or GPO
IN/OUT ADC ADC Inputs or GPIO
PWR — Analogue VDD (3.3 V)
PWR — Analogue Ground
PWR — Digital VDD (3.3 V)
PWR — Digital Ground
2
3
Description
HTP-071
3
4
4