h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 28

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 1 Overview
Table 1.1
Rev. 5.00 Sep 22, 2005 page 2 of 1136
REJ09B0257-0500
Item
CPU
Bus controller
PC break controller •
Data transfer
controller (DTC)
Overview
Specification
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General-register machine
 Sixteen 16-bit general registers (also usable as sixteen 8-bit registers
High-speed operation suitable for realtime control
 Maximum clock rate: 20 MHz
 High-speed arithmetic operations
Instruction set suitable for high-speed operation
 Sixty-nine basic instructions
 8/16/32-bit move/arithmetic and logic instructions
 Unsigned/signed multiply and divide instructions
 Multiply-and accumulate instruction
 Powerful bit-manipulation instructions
Two CPU operating modes
 Normal mode: 64-kbyte address space (not used on this device)
 Advanced mode: 16-Mbyte address space
Address space divided into 8 areas, with bus specifications settable
independently for each area
Choice of 8-bit or 16-bit access space for each area
2-state or 3-state access space can be designated for each area
Number of program wait states can be set for each area
Direct connection to burst ROM supported
Supports debugging functions by means of PC break interrupts
Two break channels
Can be activated by internal interrupt or software
Multiple transfers or multiple types of transfer possible for one activation
source
Transfer possible in repeat mode, block transfer mode, etc.
Request can be sent to CPU for interrupt that activated DTC
or eight 32-bit registers)
8/16/32-bit register-register add/subtract : 50 ns
16 × 16-bit register-register multiply
16 × 16 + 42-bit multiply and accumulate : 200 ns
32 ÷ 16-bit register-register divide
: 200 ns
: 1000 ns