R8C2C datasheet(116/615 Pages) RENESAS

Part #	R8C2C

Description	RENESAS MCU R8C FAMILY / R8C/2x SERIES

PDF	615 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

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R8C/2C Group, R8C/2D Group

9. Bus

Rev.2.00

Dec 05, 2007

Page 95 of 585

REJ09B0339-0200

Table 9.4

Access Units and Bus Operations of SFR (address 0200h to 02FFh)

However, only following SFRs are connected with the 16-bit bus:

Timer RC: registers TRC, TRCGRA, TRCGRB, TRCGRC, and TRCGRD

Timer RD: registers TRDi (i = 0,1), TRDGRAi, TRDGRBi, TRDGRCi, and TRDGRDi

Therefore, they are accessed once in 16-bit units. The bus operation is the same as “Area: SFR, data flash, even address

byte access” in Table 9.3 Access Units and Bus Operations, and 16-bit data is accessed at a time.

SFR (address 0200h to 02FFh)

CPU clock

Data

Even

Address

CPU clock

Data

Address

CPU clock

Data

Address

CPU clock

Data

Address

Data

Odd

Data

Odd + 1

Data

Even

Data

Even + 1

Data

Area

Even address

Byte access

Odd address

Byte access

Even address

Word access

Odd address

Word access

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