Functions - Renesas H8S Series Hardware Manual

B.2

Functions

MRA—DTC Mode Register A
Bit
Initial value
Read/Write
: 7 6
SM1 SM0
: Undefined Undefined Undefined
: — —
Destination Address Mode
0 —
1 0
1
Source Address Mode
0 —
SAR is fixed
1 0
SAR is incremented after a transfer
(by +1 when Sz = 0; by +2 when Sz = 1)
1
SAR is decremented after a transfer
(by -1 when Sz = 0; by -2 when Sz = 1)
H'F800—H'FBFF
5 4 3
DM1 DM0 MD1
Undefined Undefined
— — —
DTC Mode
0 0 Normal mode
1 Repeat mode
1 0 Block transfer mode
1 —
DAR is fixed
DAR is incremented after a transfer
(by +1 when Sz = 0; by +2 when Sz = 1)
DAR is decremented after a transfer
(by -1 when Sz = 0; by -2 when Sz = 1)
DTC
2 1 0
MD0 DTS Sz
Undefined Undefined Undefined
— — —
DTC Data
Transfer Size
0 Byte-size
transfer
1
Word-size
transfer
DTC Transfer Mode Select
0
Destination side is repeat
area or block area
1
Source side is repeat area
or block area
Rev.6.00 Oct.28.2004 page 847 of 1016
REJ09B0138-0600H