|
HD6473887 Datasheet, PDF (19/523 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer | |||
|
◁ |
Table 1-1 Features
Item
CPU
Interrupts
Clock pulse
generators
Power-down
modes
Description
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: 3 Mhz
 Add/subtract: 0.67 µs (operating at 3 Mhz)
 Multiply/divide: 4.67 µs (operating at 3 Mhz)
 Can run on 32.768 kHz or 38.4 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 à 8 bits)
 Divide (16 bits ÷ 8 bits)
 Bit accumulator
 Register-indirect designation of bit position
37 interrupt sources
⢠13 external interrupt sources (IRQ4 to IRQ0, WKP7 to WKP0)
⢠24 internal interrupt sources
Two on-chip clock pulse generators
⢠System clock pulse generator: 0.4 to 6 Mhz
⢠Subclock pulse generator: 32.768 kHz, 38.4 kHz
Seven power-down modes
⢠Sleep (high-speed) mode
⢠Sleep (medium-speed) mode
⢠Standby mode
⢠Watch mode
⢠Subsleep mode
⢠Subactive mode
⢠Active (medium-speed) mode
2
|
▷ |