18-207
MB86R02 ‘Jade-D’ Hardware Manual V1.64
18.11.5
Drawing control registers
CTR (Control Register)
Register
address
DrawBaseA 400
H
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Bit field name
FO CE
FCNT
NF FF FE
SS
DS
PS
R/W
RW RW
R
R R R
R
R
R
Initial value
0 0
011101
0 0 1
00
00
00
This register indicates drawing flags and status information. Bits 24 to 22 are not cleared until 0 is set.
Bit 1 and 0
PS (Pixel engine Status)
Indicate status of pixel engine unit
00
Idle
01
Busy
10
Reserved
11
Reserved
Bit 5 and 4
DS (DDA Status)
Indicate status of DDA
00
Idle
01
Busy
10
Busy
11
Reserved
Bit 9 and 8
SS (Setup Status)
Indicate status of Setup unit
00
Idle
01
Busy
10
Reserved
11
Reserved
Bit 12
FE (FIFO Empty)
Indicates whether data contained or not in display list FIFO
0
Valid data
1
No valid data
Bit 13
FF (FIFO Full)
Indicates whether display list FIFO is full or not
0
Not full
1
Full
Bit 14
NF (FIFO Near Full)
Indicates how empty the display list FIFO is
Summary of Contents for MB86R02
Page 24: ...MB86R02 Jade D Hardware Manual V1 64 ...
Page 76: ...3 2 MB86R02 Jade D Hardware Manual V1 64 Figure 3 1 Memory map 1 ...
Page 77: ...3 3 MB86R02 Jade D Hardware Manual V1 64 Figure 3 2 Memory map 2 ...
Page 167: ...8 8 MB86R02 Jade D Hardware Manual V1 64 ...
Page 214: ...11 7 MB86R02 Jade D Hardware Manual V1 64 15 16 cycles initial value ...
Page 497: ...18 139 MB86R02 Jade D Hardware Manual V1 64 VSYNC is output 1 dot clock faster than HSYNC ...
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Page 682: ...22 2 MB86R02 Jade D Hardware Manual V1 00 FUJITSU PROPRIETARY AND CONFIDENTIAL ...
Page 811: ...29 24 MB86R02 Jade D Hardware Manual V1 64 ...