
140
Bit:
15
14
8
DTCRAH
Initial value:
*
*
*
*
*
*
*
*
R/W:
—
—
—
—
—
—
—
—
Bit:
7
6
0
DTCRAL
Initial value:
*
*
*
*
*
*
*
*
R/W:
—
—
—
—
—
—
—
—
Note:
*
Initial value is undefined.
8.2.6
DTC Transfer Count Register B (DTCRB)
The DTCRB is a 16-bit register that designates the block length in block transfer mode. The
contents of this register is located in memory. The block length is 1 when the set value is H'0001,
65535 when it is H'FFFF, and 65536 when it is H'0000.
Bit:
15
14
13
12
11
10
9
8
Initial value:
*
*
*
*
*
*
*
*
R/W:
—
—
—
—
—
—
—
—
Bit:
7
6
5
4
3
2
1
0
Initial value:
*
*
*
*
*
*
*
*
R/W:
—
—
—
—
—
—
—
—
Note:
*
Initial value is undefined.
8.2.7
DTC Enable Registers (DTER)
The DTER (DTEA–DTEE) are five 8-bit readable/writable registers with bits allocated to each
interrupt source that activates the DTC. They set disable/enable for DTC activation for each
interrupt source. When a bit is 1, DTC activation by the corresponding interrupt source is enabled.
Interrupt sources for each of the DTEA–DTEE registers are indicated in table 8.2.
The DTER are initialized to H'00 by a power-on reset or in standby mode. Manual reset does not
initialize DTER.
Summary of Contents for SH7041 Series
Page 2: ......
Page 6: ......
Page 38: ...xvi ...
Page 44: ...6 ...
Page 46: ...8 ...
Page 48: ...10 ...
Page 82: ...44 ...
Page 114: ...76 ...
Page 118: ...80 ...
Page 124: ...86 ...
Page 170: ...132 ...
Page 250: ...212 ...
Page 492: ...454 ...
Page 506: ...468 ...
Page 604: ...566 ...
Page 684: ...646 ...
Page 706: ...668 ...
Page 778: ...740 ...
Page 780: ...742 ...
Page 818: ...780 ...
Page 850: ...812 ...
Page 923: ...SH7040 SH7041 SH7042 SH7043 SH7044 SH7045 Group Hardware Manual REJ09B0044 0600O ...