2
Table 1.1
Features
Item
Description
CPU
High-speed H8/300L CPU
•
General-register architecture
General registers: Sixteen 8-bit registers (can be used as eight 16-bit
registers)
•
Operating speed
Max. operating speed: 5 MHz
Add/subtract: 0.4
µ
s (operating at ø= 5 MHz)
Multiply/divide: 2.8
µ
s (operating at ø= 5 MHz)
Can run on 32.768 kHz subclock
•
Instruction set compatible with H8/300 CPU
Instruction length of 2 bytes or 4 bytes
Basic arithmetic operations between registers
MOV instruction for data transfer between memory and registers
•
Instruction features
Multiply (8 bits
×
8 bits)
Divide (16 bits
÷
8 bits)
Bit accumulator
Register-indirect designation of bit position
Interrupts
30 interrupt sources
•
13 external interrupt sources: IRQ
4
to IRQ
0
, WKP
7
to WKP
0
•
17 internal interrupt sources
Clock pulse
generators
Two on-chip clock pulse generators
•
System clock pulse generator: 1 MHz to 10 MHz
•
Subclock pulse generator: 32.768 kHz
Power-down
modes
Six power-down modes
•
Sleep mode
•
Standby mode
•
Watch mode
•
Subsleep mode
•
Subactive mode
•
Active (medium-speed) mode