PNX1700EH,557 NXP Semiconductors, PNX1700EH,557 Datasheet - Page 630

• Manufacturer Part Number: PNX1700EH,557
• Manufacturer: NXP Semiconductors

Specifications of PNX1700EH,557

• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

Philips Semiconductors
Volume 1 of 1
PNX17XX_SER_1
Preliminary data sheet
3.1.3 Mono BLT Register Setup
In the following example, the data stream for a 5*6 font requires 1
the Engine.
Since font data starts on a byte boundary, a source shift parameter is not required.
The Width field of the BltSize register determines how many host bits will be
processed before advancing to the next scanline. There are no pad bits between data
bits of adjacent scanlines - the data is highly packed. Excess bits in the very last
DWORD
(BltSize.Width*BltSize.Height +31)/32
DWORDS
not necessarily byte aligned on the left or right edges. The starting and ending bits of
each scanline may be in the middle of a byte.
For mono bitmaps, the five LSBs of the SrcLinear register determine which bit in the
first
many bits will be expanded/drawn for each scanline. The host will send
(BltSize.Width + (SrcLinear&31) + 31)/32
DWORD
each scanline as pad bits. The driver must always send the correct number of
DWORD
To deal with both host-to-screen mono bitmap and text data in a general manner, the
Engine uses up to eight parameters as shown in
Table 2: Mono Bitmap & Text Data Parameters
Parameter
DstXY or DstLinear
SrcLinear
DstStride
MonoHostFColor
MonoHostBColor
DWORD
s for each scanline. The Engine will discard unused bits in the last
s for each scanline in the bitmap.
of host data will be discarded. The Engine will require
for each glyph drawn. Mono Bitmaps sent to the Engine from Windows are
Data Stream:00110001001001111010000110000110
Rendered Font:
has the first valid data bit. The BltSize.Width register determines how
Rev. 1 — 17 March 2006
31
10000
11010
10000
10010
01110
01100
Description
Specifies the drawing destination on the screen
The three LSBs specify the leading pad bits in the first
byte of data on each scanline.
Specifies the number of pixels between scanlines in the
destination
Foreground color
Background color
Note the 2 pad bits (25 & 24) in the last byte.
Table
Chapter 20: 2D Drawing Engine
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
2.
PNX17xx Series
0
DWORD
to be sent to
DWORD
20-10
of