32174 datasheet(69/881 Pages) RENESAS

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3-8

32170/32174 Group User's Manual (Rev. 2.1)

3.2 Operation Modes

This microcomputer is placed in one of the following modes by setting its operation mode (using

MOD0 and MOD1 pins). For details about the mode used to rewrite the internal flash memory, refer

to Section 6.5, "Programming of Internal Flash Memory."

Table 3.2.1 Setting Operation Modes

MOD0

MOD1 (Note 1)

Operation Mode (Note 2)

VSS

Single-chip mode

VSS

VCCE

Extended external mode

VCCE

VSS

Processor mode (FP = VSS)

VCCE

Reserved (cannot be used)

Note 1: VCCE connects to +5 V or 3.3V, and VSS connects to GND.

Note 2: For flash rewrite mode (FP = VCCE) not listed in the above table, refer to Section 6.5, "Programming

of Internal Flash Memory."

The internal ROM and extended external areas are located differently depending on this

microcomputer's operation mode. (All other areas in address space are located the same way.)

The address maps of internal ROM and extended external areas in each mode are shown below.

(For details about internal flash memory rewrite mode, refer to Section 6.5, "Programming of Internal

Flash Memory.")

ADDRESS SPACE

3.2 Operation Modes

Figure 3.2.1 M32170F6 Operation Mode and Internal ROM/Extended External Areas

H'0000 0000

H'000B FFFF

H'000C 0000

H'003F FFFF

Non-CS0 area

<Single-chip mode>

CS1 area

(2 Mbytes)

CS0 area

(2 Mbytes)

CS1 area

(2 Mbytes)

Internal ROM

area

(768 Kbytes)

Internal ROM

area

(768 Kbytes)

H'000F FFFF

H'0010 0000

H'001F FFFF

H'0020 0000

CS0 area

(1 Mbyte)

Reserved area

(256 Kbytes)

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