MB86296 Datasheet, PDF (303/352 Pages) Fujitsu Component Limited. – PCI Graphics Controller Specification

FUJITSU LIMITED PRELIMINARY AND CONFIDENTIAL
13.2.15 Geometry control register
GCTR (Geometry Control Register)
Register
address
GeometryBaseAddress + 00H
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 Reserved FO Rsv
FCNT NF FF FE Rsv GS Rsv SS Rsv PS
R/W
Initial value
RX
RX RX
RX
RX RX RX RX R RX R RX R
X
0X
011111 0 0 1 X 00 X 00 X 00
The flags and status information of the geometry section are reflected in this register.
Note that the flags and status information of the drawing section are reflected in CTR.
Bit 1 and 0
PS (Pixel engine Status)
Indicates status of pixel engine unit
00 ^Idle
01 Processing
10 Reserved
11 Reserved
Bit 5 and 4
SS (geometry Setup engine Status)
Indicates status of geometry setup engine unit
00 Idle
01 Processing
10 Processing
11 Reserved
Bit 9 and 8
GS (Geometry engine Status)
Indicates status of geometry engine unit
00 Idle
01 Processing
10 Reserved
11 Reserved
Bit 12
FE (FIFO Empty)
Indicates whether the data iscontained in display list FIFO (DFIFOD)
0 Data in DFIFOD
1 No data in DFIFOD
Bit 13
FF (FIFO Full)
Indicates whether display list FIFO (DFIFOD) is full or not
0 DFIFOD not full
1 DFIFOD full
MB86296S <Coral-PA>
293
Specification Manual Rev0.1