R5F72115D160FPV datasheet(339/1228 Pages) RENESAS

339 / 1228 page

Section 9 Direct Memory Access Controller (DMAC)

Rev. 2.00 May. 08, 2008 Page 315 of 1200

REJ09B0344-0200

Bit

Bit Name

Initial

Value

R/W

Descriptions

11 to 8

RS[3:0]

0000

R/W

Resource Select

These bits specify which transfer requests will be sent

to the DMAC. The changing of transfer request source

should be done in the state when DMA enable bit (DE)

is set to 0.

0000: External request, dual address mode

0001: Setting prohibited

0010: External request/single address mode

External address space

→ External device with

DACK

0011: External request/single address mode

External device with DACK

→ External address

space

0100: Auto request

0101: Setting prohibited

0110: Setting prohibited

0111: Setting prohibited

1000: DMA extension resource selector

1001: Setting prohibited

1010: Setting prohibited

1011: Setting prohibited

1100: Setting prohibited

1101: Setting prohibited

1110: Setting prohibited

1111: Setting prohibited

Note: External request specification is valid only in

CHCR_0 to CHCR_3. If a request source is

selected in channels CHCR_4 to CHCR_7, no

operation will be performed.

R5F72115D160FPV Datasheet(PDF) 339 Page - Renesas Technology Corp

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