HD6432621 Hitachi, HD6432621 Datasheet - Page 45
HD6432621
Manufacturer Part Number
HD6432621
Description
(HD64F262x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432621.pdf
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Section 1 Overview
1.1
Overview
The H8S/2626 Series and H8S/2623 Series are series of microcomputers (MCUs) that integrate
peripheral functions required for system configuration together with an H8S/2600 CPU employing
an original Hitachi architecture.
The H8S/2600 CPU has an internal 32-bit architecture, is provided with sixteen 16-bit general
registers and a concise, optimized instruction set designed for high-speed operation, and can
address a 16-Mbyte linear address space. The instruction set is upward-compatible with H8/300
and H8/300H CPU instructions at the object-code level, facilitating migration from the H8/300,
H8/300L, or H8/300H Series.
On-chip peripheral functions required for system configuration include a data transfer controller
(DTC) bus master, ROM and RAM memory, a16-bit timer-pulse unit (TPU), programmable pulse
generator (PPG), watchdog timer (WDT), serial communication interface (SCI), Hitachi controller
area network (HCAN), A/D converter, D/A converter (H8S/2626 Series only), and I/O ports.
The on-chip ROM is 256-kbyte flash memory (F-ZTAT™)* or 256-, 128-, or 64-kbyte mask
ROM. The ROM is connected to the CPU by a 16-bit data bus, enabling both byte and word data
to be accessed in one state. Instruction fetching has been speeded up, and processing speed
increased.
Four operating modes, modes 4 to 7, are provided, and there is a choice of single-chip mode or
external expansion mode.
The features of the H8S/2626 Series and H8S/2623 Series are shown in table 1-1.
Note: * F-ZTAT is a trademark of Hitachi, Ltd.
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