pnx1700 NXP Semiconductors, pnx1700 Datasheet - Page 643

• Manufacturer Part Number: pnx1700
• Description: Connected Media Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Volume 1 of 1
Table 20: Blt Control
Table 21: Source Address, XY Coordinates
PNX17XX_SER_1
Preliminary data sheet
Bit
15:13
12
11
10:8
7:0
Bit
Offset 0x04 F42C
31:27
26:24
23:16
15:11
10:8
7:0
Symbol
Reserved
SP
Reserved
SRC[2:0]
ROP[7:0]
Symbol
Reserved
Y[10:8]
Y[7:0]
Reserved
X[10:8]
X[7:0]
Source Address, XY Coordinates
This register specifies the current rasterop, alpha, and other parameters for the
drawing engine data path. This register must be properly initialized for BLTs, Alpha
Blends, and vectors. This register is unchanged by any drawing operations.
This register is used to load the source XY address for a BLT operation.
Acces
s
R/W
R/W
R/W
Acces
s
R/W
R/W
R/W
R/W
Value
0
0
0
Value
0
0
0
0
Rev. 1 — 17 March 2006
Description
The SP field indicates if the pattern is a solid color. SP is bit 12 of
this register. Legal values are:
0 = Patterns are handled normally.
1 = The value held in the MonoPatFColor foreground color register
will be used as pattern data.
The SRC[2:0] field is a 3-bit parameter specifying how the source
data are created. SRC[2:0] are in bits 11:8 of this register:
0 = SRC data is color data from SGRAM. This is used for screen-to-
screen BLTs with either ROPs or alpha blends.
1 = SRC data is color bitmap data from the host processor. This is
used for host-to-screen BLTs with either ROPs or alpha blends.
2 = SRC data is PC mono bitmap data from the host processor. This
is used for color expanding host-to-screen BLTs. This encoding
implies that host data is padded to a DWORD boundary at the end
of scanlines.
3 = SRC data is PC mono font data from the host processor. This is
used for text rendering. This encoding implies highly packed host
data and forces the Drawing Engine to use SrcStride=BltSize. Width
and SrcLinear=0.
4 = SRC data is 4-bit alpha values from the host. This option is used
with alpha-blending.
5 = SRC data is 8-bit alpha values from the host. This option is used
with alpha-blending.
6 = Use only surface values for alpha-blending, no SRC data
present.
7 = Reserved
This field is an 8-bit parameter that specifies the rasterop. It is the
same format used by GDI. ROP[7:0] are in bits 7:0 of this register.
Description
Unsigned 11-bit Y source address
Unsigned 11-bit X source address
Chapter 20: 2D Drawing Engine
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX17xx Series
20-23