HD64570 Datasheet, PDF (449/469 Pages) Hitachi Semiconductor – Serial Communications Adaptor

Address
Register
CPU CPU
Mode Mode
0, 1 2, 3 Remarks
DMAC (Channel 0)
Destination Address
80H 81H
Register Channel 0: DARL
Channel 0 Buffer Address
Register Channel 0: BARL
Channel 0
B
H
L
23
16 15
87
0
Single-block transfer
mode
Chained-block
transfer mode
DARB
BARB
DARH
BARH
DARL
BARL
Destination Address
81H 80H
Register Channel 0: DARH
Channel 0 Buffer Address
Register Channel 0: BARH
Channel 0
Destination Address
82H 83H
Register Channel 0: DARB
Channel 0 Buffer Address
Register Channel 0: BARB
Channel 0
Not used
83H 82H
Not used
Not used
84H 85H
85H 84H
B
H
L
23
16 15
87
0
Chain Pointer Base
86H 87H
Channel 0: CPB Channel 0
Not used
87H 86H
Single-block transfer
mode
Chained-block
transfer mode
Not used
CPB
Not used
Not used
Not used
Not used
Rev. 0, 07/98, page 433 of 453