Datasheet

PIC24FJ256DA210 FAMILY
DS39969B-page 306  2010 Microchip Technology Inc.
22.1 GFX Module Registers
REGISTER 22-1: G1CMDL: GPU COMMAND LOW REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
GCMD15 GCMD14 GCMD13 GCMD12 GCMD11 GCMD10 GCMD9 GCMD8
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
GCMD7 GCMD6 GCMD5 GCMD4 GCMD3 GCMD2 GCMD1 GCMD0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 GCMD<15:0>: Low GPU Command bits
The full 32-bit command is defined by G1CMDH and G1CMDL (GCMD<31:0>). Writes to this register
will not trigger the loading of GCMD <31:0> to the command FIFO. For command FIFO loading, see
the G1CMDH register description.
REGISTER 22-2: G1CMDH: GPU COMMAND HIGH REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
GCMD31 GCMD30 GCMD29 GCMD28 GCMD27 GCMD26 GCMD25 GCMD24
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
GCMD23 GCMD22 GCMD21 GCMD20 GCMD19 GCMD18 GCMD17 GCMD16
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-0 GCMD<31:16>: High GPU Command bits
The full 32-bit command is defined by G1CMDH and G1CMDL (GCMD<31:0>). A word write to the
G1CMDH register triggers the loading of GCMD<31:0> to the command FIFO. Byte writes to the
G1CMDH are allowed but only a high byte write will trigger the command loading to the FIFO. Low
byte write to this register will only update the G1CMDH<7:0> bits.