M32CSLASH8B datasheet(153/406 Pages) RENESAS

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M32C/8B Group

14. DMACII

Preliminary specification

Specifications in this manual are tentative and subject to change.

REJ09B0450-0050 Rev.0.50 Oct 31, 2008

Page 136 of 385

Table 14.2

DMACII Index Configuration in Transfer Mode

Figure 14.3

MOD

DMAC II index

Not used

Chain transfer

Used

Not used

End-of-

Transfer

Interrupt

Not used

Used

Not used

Used

Transfer data

Memory-to-Memory Transfer/

Immediate Data Transfer

Multiple

Transfer

Calculation Transfer

Used

Cannot used

Not used

Used

Not used

Used

Not used

8 bytes

12 bytes

16 bytes

18 bytes

MOD

SADR

DADR

COUNT

MOD

CADR0

SADR

DADR

COUNT

CADR1

MOD

IADR0

SADR

DADR

COUNT

IADR1

MOD

CADR0

SADR

DADR

COUNT

IADR0

IADR1

CADR1

MOD

DADR

SADR

OADR

COUNT

IADR1

CADR1

IADR0

CADR0

MOD

DADR

SADR

OADR

COUNT

MOD

DADR

SADR

OADR

COUNT

CADR1

CADR0

MOD

DADR

SADR

OADR

COUNT

IADR1

IADR0

MOD

DADR1

SADR1

COUNT

DADRi

SADRi

10 bytes

14 bytes

i = 1 to 7

max. 32 bytes

(when i = 7)

Cannot used

12 bytes

b15

b8 b7

Function

(MULT = 0)

Bit Symbol

Bit Name

Transfer Mode (MOD)(1)

NOTES:

1. MOD must be located in the RAM.

2. When the MULT bit is set to 0, bits 6 to 4 function as bits OPER, BRST, and INTE. When the MULT bit is set to 1, bits 6 to 4

function as bits CNT2 to CNT0.

Function

(MULT = 1)

SIZE

Transfer unit select bit

0: 8 bits

1: 16 bits

IMM

Transfer data select bit

0: Immediate data

1: Memory

Set to 1

UPDS

Transfer source direction

select bit

0: Fixed address

1: Incremented address

UPDD

Transfer destination

direction select bit

0: Fixed address

1: Incremented address

Calculation transfer

function select bit

0: Not used

1: Used

b6 b5 b4

0 0 0: Do not set to this

value

0 0 1: Once

0 1 0: Twice

1 1 0: 6 times

1 1 1: 7 times

OPER/

CNT0(2)

Burst transfer select bit

0: Single transfer

1: Burst transfer

BRST/

CNT1(2)

End-of-transfer interrupt

select bit

0: Interrupt not used

1: Interrupt used

INTE/

CNT2(2)

CHAIN

Chain transfer

select bit

0: Chain transfer not

used

1: Chain transfer used

Set to 0

−

(b14-b8)

Unimplemented.

Write 0. Read as undefined value.

−

MULT

Multiple transfer

select bit

0: Multiple transfer not

used

1: Multiple transfer used

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