HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 107

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

3.1
3.1.1
The H8S/2328B F-ZTAT and H8S/2326 F-ZTAT have eight operating modes (modes 4 to 7, 10,
11, 14 and 15). These modes are determined by the mode pin (MD
pin (FWE) settings. The CPU operating mode and initial bus width can be selected as shown in
table 3.1.
Table 3.1 lists the MCU operating modes.
Table 3.1
1
2
3
6
7
8
9
10
11
12
13
14
15
MCU
Operating
Mode
4
5
Overview
Operating Mode Selection (H8S/2328B F-ZTAT, H8S/2326 F-ZTAT)
0
1
FWE MD
MCU Operating Mode Selection (H8S/2328B F-ZTAT, H8S/2326 F-ZTAT)
0
0
1
1
2
Section 3 MCU Operating Modes
0
0
0
MD
1
0
1
1
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
MD
0
1
0
—
—
Advanced Boot mode
—
Advanced User program mode
CPU
Operating
Mode
Advanced
—
Expanded mode with on-
chip ROM enabled
Single-chip mode
—
—
Description
Expanded mode with
on-chip ROM disabled
Rev.6.00 Sep. 27, 2007 Page 77 of 1268
Section 3 MCU Operating Modes
2
to MD
—
Enabled 8 bits
—
Enabled 8 bits
—
Enabled 8 bits
On-Chip
ROM
Disabled 16 bits 16 bits
0
) and flash write enable
REJ09B0220-0600
—
Initial
Value
—
8 bits
—
—
—
—
External Data
Bus
—
—
—
—
Max
Value
—
16 bits
16 bits
—
16 bits
16 bits