R8C datasheet(25/199 Pages) RENESAS

Teilenummer	R8C

Bauteilbeschribung	RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

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R8C/10 Group

5. Reset

Rev.1.20 Jan 27, 2006

page 15 of 180

REJ09B0019-0120

Figure 5.2 Reset Sequence

Figure 5.1 CPU Register Status After Reset

b15

Data register(R0)

Address register(A0)

Frame base register(FB)

Program counter(PC)

Interrupt table register(INTB)

User stack pointer(USP)

Interrupt stack pointer(ISP)

Static base register(SB)

Flag register(FLG)

000016

IPL

000016

b19

Content of addresses 0FFFE16 to 0FFFC16

b15

0000016

Data register(R1)

Data register(R2)

Data register(R3)

Address register(A1)

000016

fRING

Address

(Internal address signal)

Content of reset vector

0FFFD16

More than 20 cycles are needed

CPU clock

CPU clock ✕ 28cycles

Internal on-chip

oscillation

0FFFC16

0FFFE16

Flash memory activated time

(CPU clock ✕ 64 cycles)

NOTES:

1. This shows hardware reset

(1)

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