19. Display Unit (DU)
Rev.1.00 Jan. 10, 2008 Page 849 of 1658
REJ09B0261-0100
19.3.3
Display Status Register (DSSR)
The display status register (DSSR) is a register used to read, from outside, the internal state of the
display unit (DU).
R/W:
Internal update:
R/W:
Internal update:
16
17
18
19
20
21
22
23
24
25
26
27
28
29
31
30
Bit:
Initial value:
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
DFB1
DFB2
DFB3
DFB4
DFB5
DFB6
—
—
—
—
—
—
—
—
—
—
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
—
—
—
—
—
—
—
—
HBK
RINT
—
VBK
—
—
TVR
FRM
0
1
2
3
4
5
6
7
8
9
10
11
12
13
15
14
Bit:
Initial value:
Bit Bit
Name
Initial
Value R/W
Internal
Update Description
31, 30
⎯
00
R
⎯
Reserved
These bits are always read as 0. The write value
should always be 0.
29, 28
⎯
11
R
⎯
Reserved
These bits are always read as 1. The write value
should always be 1.
27 to 22
⎯
All
0
R
⎯
Reserved
These bits are always read as 0. The write value
should always be 0.
21
DFB6
0
R
None
Display Frame Buffer 6 Flag
0: The address indicated by the plane 6 display
area start address 0 register (P6DSA0R) in
plane 6 is being used as the display area start
address
1: The address indicated by the plane 6 display
area start address 1 register (P6DSA1R) in
plane 6 is being used as the display area start
address
Содержание SH7781
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Страница 762: ...14 Direct Memory Access Controller DMAC Rev 1 00 Jan 10 2008 Page 732 of 1658 REJ09B0261 0100 ...
Страница 788: ...15 Clock Pulse Generator CPG Rev 1 00 Jan 10 2008 Page 758 of 1658 REJ09B0261 0100 ...
Страница 828: ...17 Power Down Mode Rev 1 00 Jan 10 2008 Page 798 of 1658 REJ09B0261 0100 ...
Страница 846: ...18 Timer Unit TMU Rev 1 00 Jan 10 2008 Page 816 of 1658 REJ09B0261 0100 ...
Страница 1292: ...24 Multimedia Card Interface MMCIF Rev 1 00 Jan 10 2008 Page 1262 of 1658 REJ09B0261 0100 ...
Страница 1326: ...25 Audio Codec Interface HAC Rev 1 00 Jan 10 2008 Page 1296 of 1658 REJ09B0261 0100 ...
Страница 1482: ...28 General Purpose I O Ports GPIO Rev 1 00 Jan 10 2008 Page 1452 of 1658 REJ09B0261 0100 ...
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