Description
The H8/3437 Series of single-chip microcomputers features an H8/300 CPU core and a complement of on-chip supporting modules implementing a variety of system functions.The H8/300 CPU is a high-speed processor with an architecture featuring powerful bit manipulation instructions, ideally suited for real time control applications. The on-chip supporting modules implement peripheral functions needed in system configurations. These include ROM, RAM, four types of timers (a 16-bit free-running timer, 8-bit timers, PWM timers, and a watchdog timer), a serial communication interface (SCI), an I2 C bus interface [option], a host interface (HIF), an A/D converter, a D/A converter, and I/O ports.The H8/3437 Series can operate in single-chip mode or in two expanded modes, depending on the requirements of the application.
- Two-way general register configuration
- Eight 16-bit registers, or
- Sixteen 8-bit registers
- High-speed operation
- Maximum clock rate (ø clock): 16 MHz at 5 V, 12 MHz at 4 V or 10 MHz at 3 V
- 8- or 16-bit register-register add/subtract: 125 ns (16 MHz), 167 ns (12 MHz), 200 ns (10 MHz)
- 8 × 8-bit multiply: 875 ns (16 MHz), 1167 ns (12 MHz), 1400 ns (10 MHz)
- 16 ÷ 8-bit divide: 875 ns (16 MHz), 1167 ns (12 MHz), 1400 ns (10 MHz)
- Streamlined, concise instruction set
- Instruction length: 2 or 4 bytes
- Register-register arithmetic and logic operations
- MOV instruction for data transfer between registers and memory
- Instruction set features
- Multiply instruction (8 bits × 8 bits)
- Divide instruction (16 bits ÷ 8 bits)
- Bit-accumulator instructions
- Register-indirect specification of bit positions
