HD6417034B RENESAS [Renesas Technology Corp], HD6417034B Datasheet - Page 75

• Manufacturer Part Number: HD6417034B
• Description: 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

3.1
The SH7032 microcomputer operates in one of two operating modes (modes 0 and 1) and the
SH7034 operates in one of four operating modes (modes 0, 1, 2, and 7). Modes 0 and 1 differ in
the bus width of memory area 0. The mode is selected by the mode pins (MD2–MD0) as indicated
in table 3.1. Do not change the mode selection while the chip is operating.
Table 3.1
Operating Mode
Mode 0 *
Mode 1 *
Mode 2
Mode 7 *
Notes: 1. SH7034 PROM version only
3.2
3.2.1
In mode 0, memory area 0 has an eight-bit bus width. For the memory map, see section 8, Bus
State Controller (BSC).
3.2.2
In mode 1, memory area 0 has a 16-bit bus width.
3.2.3
In mode 2, memory area 0 is assigned to the on-chip ROM. Mode 2 should only be set for the
product is the SH7034.
2. Only modes 0 and 1 are available in the SH7032 and SH7034 ROMless version.
2
2
1
Types of Operating Modes and Their Selection
Operating Mode Descriptions
Mode 0 (MCU Mode 0)
Mode 1 (MCU Mode 1)
Mode 2 (MCU Mode 2)
Operating Mode Selection
MD2
0
0
0
1
Section 3 Operating Modes
Pin Settings
MD1
0
0
1
1
MD0
0
1
0
1
Mode Name
MCU mode 0
MCU mode 1
MCU mode 2
PROM mode
Rev. 7.00 Jan 31, 2006 page 49 of 658
Bus Width of Area 0
8 bits
16 bits
On-chip ROM
—
Section 3 Operating Modes
REJ09B0272-0700