Pioneer VSX-321-K-P Service Manual page 29

5
8952VS3210030-IL (EPF011C) (D-MAIN ASSY: IC203)
Generic MCU with 64K Embedded Flash
• Pin Arrangement (Top View)
• Block Diagram
5
6
P7[0](RXD) 1
P7[1](TXD) 2
3
P4[1]
P3[0]
4
P3[1]
5
P3[4]
6
7
P3[5]
RSTb
8
9
OP_MODE
P9[0]
10
P7[4](CIR) 11
P5[0]
12
Port 0
Port 1
KBI
Port 2
Port 3
IIC
Port 4
Ex. Int.
Port 5
Hi Current
Port 7
UART/CIR
Port 8
PWM
Port 9
GPIO
HTP-071
6
7
P1[1]
24
23 P8[7](PWM)
22 P2[1]
VSS
21
VDD
20
X_OUT
19
X_IN
18
17 VSS
VDD
16
P0[2]
15
P0[1]
14
P0[0]
13
256B Direct
Data RAM
8051 Core
2KB Aux.
Data RAM
LVI
PMU 64KB Flash
ICP
WDT
UART
IIC x 2
8-bit PWM x 1
CIR
Timer x 4
7
8
A
B
C
D
E
F
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