4
4
4
3
8
2
I/O port
Port P1
Port P2
Port P3
Port D
System clock generating circuit
X
IN
—X
OUT
Port P0
Internal peripheral functions
Voltage comparator
(2 circuits)
BLOCK DIAGRAM (4513 Group)
Timer
Timer 1 (8 bits)
Timer 2 (8 bits)
Timer 3 (8 bits)
Voltage drop detection circuit
Timer 4 (8 bits)
Watchdog timer
(16 bits)
Memory
4500 Series
CPU core
ALU (4 bits)
ROM
2048, 4096, 6144, 8192
words
✕
10 bits
A-D converter
(10 bits
✕
4 ch)
Serial I/O
(8 bits
✕
1)
RAM
128, 256, 384 words
✕
4 bits
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
4513/4514 Group
Register A (4 bits) Register B (4 bits)
Register D (3 bits) Register E (8 bits)
Stack register SK (8 levels)
Interrupt stack register SDP (1 level)
RENESAS [ RENESAS TECHNOLOGY CORP ]
