MB86294 Datasheet, PDF (246/305 Pages) Fujitsu Component Limited. – Grraphiics Controller specifications

FUJITSU LIMITED
PRELIMINARY and CONFIDENTIAL
11.2.14 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
RX
RX RX
RX
RXRX RX RX R RX R RX R
Initial value
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 is contained 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
MB86294/294S CORAL_LB
Graphics Controller
246
Specifications Rev. 1.0