32186 datasheet(173/1032 Pages) RENESAS

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INTERNAL MEMORY

6-31

32185/32186 Group Hardware Manual

Rev.1.10 REJ09B0235-0110 May 15, 07

6.6.2 Controlling Operation Modes during Flash Programming

The microcomputer’s operation mode is set by MOD0, MOD1 and Flash Control Register 1 (FCNT1) FENTRY bit.

The table below lists operation modes that may be used when programming or erasing the internal flash memory.

Table 6.6.1 Operation Modes Set during Flash Programming/Erase

MOD0 MOD1 FENTRY (Note 1) Operation Mode

Reset Vector Entry

EI Vector Entry

Single-chip mode

Start address of internal

Flash area

flash memory

(H'0000 0080)

(H'0000 0000)

Processor mode

Start address of external

External area

area

(H'0000 0000)

(H'0000 0080)

External extension

Start address of internal

Flash area

mode

flash memory

(H'0000 0080)

(H'0000 0000)

Single-chip mode

Start address of internal

Beginning of internal RAM

+ flash E/W enable

flash memory

(H'0080 4000)

(H'0000 0000)

Boot mode

Boot program startup

Flash area

address

(H'0000 0080)

Boot mode + flash

Boot program startup

Beginning of internal RAM

E/W enable

address

(H'0080 4000)

External extension

Start address of internal

Beginning of internal RAM

mode + flash E/W

flash memory

(H'0080 4000)

enable

(H'0000 0000)

–

Setting inhibited

–

Note 1: Indicates the Flash Control Register 1 (FCNT1) FENTRY bit status (– denotes “Don’t care”). However, if FP = "0,"

writing "1" to FENTRY only results in it cleared to "0."

Note: • Always make sure the MOD2 pin is connected low (= 0) to ground (GND).

6.6 Programming Internal Flash Memory

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