535
ETCR1A—Transfer Count Register 1A
H'FEF6
DMAC
*
: Undefined
Bit
ETCR1A
Initial value
Read/Write
Sequential mode
Idle mode
Normal 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
Block size counter
Transfer counter
Holds number of transfers
Holds block size
MAR1BH—Memory Address Register 1BH
H'FEF8
DMAC
MAR1BL—Memory Address Register 1BL
H'FEFA
DMAC
*
: Undefined
Bit
MAR1BL
Initial value
Read/Write
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
Read/Write
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
Содержание H8S/2670
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