r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 709

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

14.3.5
TCR are 32-bit readable/writable registers that specify the DMA transfer count. When the value is
set to H'00000001, H'00FFFFFF, H'00000000, the transfer count is 1, 16,777,215, and 16,777,216
(the maximum) respectively. During a DMA transfer, these registers indicate the remaining
transfer count.
The upper eight bits in TCR (bits 31 to 24) are always read as 0. The write value should always be
0.
The initial value of TCR is undefined.
Initial value:
Initial value:
R/W:
R/W:
BIt:
BIt:
DMA Transfer Count Registers 0 to 11 (TCR0 to TCR11)
R/W
31
15
⎯
⎯
⎯
R
R/W
30
14
⎯
⎯
⎯
R
R/W
29
13
⎯
⎯
⎯
R
R/W
28
⎯
12
⎯
⎯
R
R/W
27
⎯
⎯
11
⎯
R
R/W
26
10
⎯
⎯
⎯
R
R/W
25
⎯
⎯
⎯
R
9
R/W
24
⎯
⎯
⎯
R
8
R/W
R/W
23
⎯
⎯
7
14. Direct Memory Access Controller (DMAC)
Rev.1.00 Jan. 10, 2008 Page 679 of 1658
R/W
R/W
22
⎯
⎯
6
R/W
R/W
21
⎯
⎯
5
R/W
R/W
20
⎯
⎯
4
R/W
R/W
19
⎯
⎯
3
REJ09B0261-0100
R/W
R/W
18
⎯
⎯
2
R/W
R/W
17
⎯
⎯
1
R/W
R/W
16
⎯
⎯
0