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This etric l
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ice:
Not e para
Som
ARY
IN
MITSUBISHI MICROCOMPUTERS
M37920S4CGP
16-BIT CMOS MICROCOMPUTER
Write output
BLW
Data Bus (Even)
Data Bus (Odd)
Data Buffer DQ
0
(8)
Data Buffer DQ
1
(8)
Data Buffer DQ
2
(8)
Address Bus
Data Buffer DQ
3
(8)
Address output circuit
Read output
RD
External data bus width
select input
BYTE
Instruction Queue Buffer Q
0
(8)
Instruction Queue Buffer Q
1
(8)
Instruction Queue Buffer Q
2
(8)
NMI
Instruction Queue Buffer Q
3
(8)
Instruction Queue Buffer Q
4
(8)
Data I/O circuit
Reference
voltage input
V
REF
Instruction Queue Buffer Q
5
(8)
Instruction Queue Buffer Q
6
(8)
Instruction register (8)
Instruction Queue Buffer Q
8
(8)
Instruction Queue Buffer Q
9
(8)
DRAM controoler
Program Address Register PA (24)
Bus
Interface
Unit
(BIU)
Incrementer (24)
(0 V)
MD1
Incrementer/Decrementer (24)
Program Counter PC (16)
(5 V)
MD0
A-D converter (10)
P4(5)
Data Address Register DA (24)
Program Bank Register PG (8)
Data bank Register DT (8)
Input Buffer Register IB (16)
Processor Status Register PS (11)
Watchdog timer
Timer TB2 (16)
Timer TB1 (16)
Timer TB0 (16)
Vcc
Direct Page Register DPR1 (16)
Direct Page Register DPR2 (16)
Timer TA4 (16)
Timer TA3 (16)
Timer TA2 (16)
Timer TA1 (16)
Timer TA0 (16)
Reset input
P7(4)
Direct Page Register DPR0 (16)
Direct Page Register DPR3 (16)
Stack Pointer S (16)
Index Register Y (16)
Clock output
BLOCK DIAGRAM
Clock Generating Circuit
Accumulator B (16)
Accumulator A (16)
Clock input
Arithmetic Logic
Unit (16)
2
Input/Output
port P12
P12(3)
X
IN
Input/Output
port P9
RAM
2048 bytes
X
OUT
Index Register X (16)
Central Processing Unit
(CPU)
P9(7)
Input/Output
port P8
RESET
P8(7)
Input/Output
port P7
Input/Output
port P6
UART1(9)
UART0(9)
(0 V)
Vss
P6(7)
Input/Output
port P5
P5(8)
Input/Output
port P4
Input/Output
port P3
(0 V)
AV
SS
P3(2)
Input/Output
port P2
Instruction Queue Buffer Q
7
(8)
DMA3(16)
DMA2(16)
DMA1(16)
DMA0(16)
P2(8)
AVcc
Data bus
Address bus
RENESAS [ RENESAS TECHNOLOGY CORP ]
