r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 879

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

19.3.3
The display status register (DSSR) is a register used to read, from outside, the internal state of the
display unit (DU).
Internal update:
Internal update:
Bit
31, 30
29, 28
27 to 22 ⎯
21
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
Display Status Register (DSSR)
Bit Name
⎯
⎯
DFB6
TVR
31
15
—
R
R
0
0
FRM
30
14
—
R
R
0
0
Initial
Value
00
11
All 0
0
29
—
13
—
R
R
1
0
28
12
—
—
R
R
1
0
R/W
R
R
R
R
VBK
27
11
—
R
R
0
0
Internal
Update
⎯
⎯
⎯
None
26
10
—
—
R
R
0
0
RINT
25
—
R
R
0
9
0
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Reserved
These bits are always read as 1. The write value
should always be 1.
Reserved
These bits are always read as 0. The write value
should always be 0.
Display Frame Buffer 6 Flag
0: The address indicated by the plane 6 display
1: The address indicated by the plane 6 display
HBK
24
—
R
R
0
8
0
area start address 0 register (P6DSA0R) in
plane 6 is being used as the display area start
address
area start address 1 register (P6DSA1R) in
plane 6 is being used as the display area start
address
23
—
—
R
R
0
7
0
Rev.1.00 Jan. 10, 2008 Page 849 of 1658
22
—
—
R
R
0
6
0
DFB6
21
—
R
R
0
5
0
DFB5
20
—
R
R
0
4
0
DFB4
19. Display Unit (DU)
19
—
R
R
0
3
0
REJ09B0261-0100
DFB3
18
—
R
R
0
2
0
DFB2
17
—
R
R
0
1
0
DFB1
16
—
R
R
0
0
0