HD64570 Datasheet, PDF (464/469 Pages) Hitachi Semiconductor – Serial Communications Adaptor

Register
DMAC (Channel 3)
Buffer Address Register
Channel 3: BARL
Channel 3
Buffer Address Register
Channel 3: BARH
Channel 3
Buffer Address Register
Channel 3: BARB
Channel 3
Address
CPU CPU
Mode Mode
0, 1 2, 3 Remarks
E0H E1H
B
H
L
23
16 15
87
0
E1H E0H
E2H E3H
Single-block transfer
mode
Chained-block
transfer mode
Not used
BARB
Not used
BARH
Not used
BARL
Not used
E3H E2H
Source Address Register E4H E5H
Channel 3: SARL Channel
3 (Chain Pointer Base
Channel 3: CPB Channel 3)
Source Address Register E5H E4H
Channel 3: SARH Channel
3 (Chain Pointer Base
Channel 3: CPB Channel 3)
B
H
L
23
16 15
87
0
Single-block transfer
mode
Chained-block
transfer mode
SARB
CPB
SARH
Not used
SARL
Not used
Source Address Register E6H E7H
Channel 3: SARB Channel
3 (Chain Pointer Base
Channel 3: CPB Channel 3)
Not used
E7H E6H
Rev. 0, 07/98, page 448 of 453