Datasheet

Section 1 Overview
Rev.6.00 Sep. 27, 2007 Page 6 of 1268
REJ09B0220-0600
Item Specification
Operating modes
• Four MCU operating modes (ROMless, mask ROM versions, H8S/2329B
F-ZTAT)
External Data Bus
Mode
CPU
Operating
Mode Description
On-Chip
ROM
Initial
Value
Maximum
Value
1 — — — — —
2
*
1
3
*
1
4
*
2
Advanced On-chip ROM disabled
expansion mode
Disabled 16 bits 16 bits
5
*
2
On-chip ROM disabled
expansion mode
Disabled 8 bits 16 bits
6 On-chip ROM enabled
expansion mode
Enabled 8 bits 16 bits
7 Single-chip mode Enabled — —
Notes: 1. Boot mode in the H8S/2329B F-ZTAT. See table 19.9, for
information on H8S/2329B F-ZTAT user boot modes. See table
19.9, for information on H8S/2329B F-ZTAT user program modes.
2. The ROMless versions can use only modes 4 and 5.
Clock pulse
generator
• Built-in duty correction circuit