1. Overview
Rev.3.00 Jul. 19, 2007 page 2 of 532
REJ09B0397-0300
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 5 MHz)
⎯
Multiply/divide: 2.8
μ
s (operating at 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
Typical
instructions
•
Multiply (8 bits
×
8 bits)
•
Divide (16 bits
÷
8 bits)
•
Bit accumulator
•
Register-indirect designation of bit position
Interrupts
H8/3857 Group: 29 interrupt sources
•
13 external interrupt sources: IRQ
4
to IRQ
0
, WKP
7
to WKP
0
•
16 internal interrupt sources
H8/3854 Group: 26 interrupt sources
•
12 external interrupt sources: IRQ
4
, IRQ
3
, IRQ
1
, IRQ
0
, WKP
7
to WKP
0
•
14 internal interrupt sources
Clock pulse generators Two on-chip clock pulse generators
•
System clock pulse generator: 1 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
Содержание F-ZTAT H8 Series
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