r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1009

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

20.3.1
GACMR is in the GDTA common register block and enables writing to the GA enable register
(GACER). Writing to GACER is enabled by writing of the key code to this register. In the initial
state, the key code is not written and writing to GACER is disabled.
Initial value:
Initial value:
Bit
31 to 0
R/W:
R/W:
BIt:
BIt:
Bit Name
GA Mask Register (GACMR)
GACM
R/W
R/W
31
15
0
0
R/W
R/W
30
14
0
0
R/W
R/W
29
13
0
0
Initial
Value
0
R/W
R/W
28
12
0
0
R/W
R/W
R/W
R/W
27
11
0
0
R/W
R/W
26
10
0
0
Description
Write the key code [H'A55A 0FF0] to enable writing to
GACER. If a value other than the key code is written,
writing to the GA enable register is disabled.
R/W
R/W
25
0
9
0
R/W
R/W
24
0
8
0
GACM
GACM
20. Graphics Data Translation Accelerator (GDTA)
R/W
R/W
23
0
7
0
Rev.1.00 Jan. 10, 2008 Page 979 of 1658
R/W
R/W
22
0
6
0
R/W
R/W
21
0
5
0
R/W
R/W
20
0
4
0
R/W
R/W
19
0
3
0
REJ09B0261-0100
R/W
R/W
18
0
2
0
R/W
R/W
17
0
1
0
R/W
R/W
16
0
0
0