1078
MAR1BH—Memory Address Register 1BH
MAR1BL—Memory Address Register 1BL
H'FEF8
H'FEFA
DMAC
DMAC
*
: Undefined
Bit
MAR1BL
Initial value
R/W
15
*
R/W
14
*
R/W
13
*
R/W
12
*
R/W
11
*
R/W
10
*
R/W
9
*
R/W
8
*
R/W
7
*
R/W
6
*
R/W
5
*
R/W
4
*
R/W
3
*
R/W
2
*
R/W
1
*
R/W
0
*
R/W
Bit
MAR1BH
Initial value
R/W
:
:
:
:
:
:
:
:
31
—
0
—
30
—
0
—
29
—
0
—
28
—
0
—
27
—
0
—
26
—
0
—
25
—
0
—
24
—
0
—
23
*
R/W
22
*
R/W
21
*
R/W
20
*
R/W
19
*
R/W
18
*
R/W
17
*
R/W
16
*
R/W
In short address mode: Specifies transfer destination/transfer source address
In full address mode:
Not used
ETCR1B—Transfer Count Register 1B
H'FEFE
DMAC
*
: Undefined
Note: Not used in normal mode.
Bit
ETCR1B
Initial value
R/W
:
:
:
:
Sequential mode
and idle mode
Repeat mode
Block transfer mode
15
*
R/W
14
*
R/W
13
*
R/W
12
*
R/W
11
*
R/W
10
*
R/W
9
*
R/W
8
*
R/W
7
*
R/W
6
*
R/W
5
*
R/W
4
*
R/W
3
*
R/W
2
*
R/W
1
*
R/W
0
*
R/W
Transfer counter
Transfer counter
Holds number of transfers
Block transfer counter
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...