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4513/4514 Group User’s Manual
HARDWARE
1-7
BLOCK DIAGRAM (4514 Group)
Voltage drop detection circuit
Serial I/O
(8 bits ✕ 1)
Voltage comparator
(2 circuits)
X
IN
—XOUT
I/O port
Internal peripheral functions
Timer
System clock generating circuit
Watchdog timer
(16 bits)
Memory
ROM
6144, 8192 words × 10 bits
RAM
384 words × 4 bits
4500 Series
CPU core
ALU (4 bits)
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)
Timer 1 (8 bits)
Timer 2 (8 bits)
Timer 3 (8 bits)
Timer 4 (8 bits)
A-D converter
(10 bits ✕ 8 ch)
Port DPort P3Port P2Port P1Port P0 Port P5Port P4
4
4
4
4
4
8
3
BLOCK DIAGRAM