SAA7115HLBE NXP Semiconductors, SAA7115HLBE Datasheet - Page 366
SAA7115HLBE
Manufacturer Part Number
SAA7115HLBE
Description
Video ICs ADV DGTL VIDEO DECODR
Manufacturer
NXP Semiconductors
Datasheet
1.SAA7115HLBE.pdf
(548 pages)
Specifications of SAA7115HLBE
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 70 C
Package / Case
SOT-407
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Number Of Channels
2
Resolution
8 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
SAA7115HL/V1,557 SAF7115HLBE
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Philips Semiconductors
Dual clipped absolute value of signed 16-bit
halfwords
SYNTAX
FUNCTION
DESCRIPTION
the high and low 16-bit halfwords of rsrc2. Both absolute values are clipped into the range [0x0..0x7fff] and written into
the corresponding halfwords of rdest. All values are signed 16-bit integers. This operation requires a zero as first
argument. The programmer is advised to use the
the modification of the destination register. If the LSB of rguard is 1, rdest is written; otherwise, rdest is not changed.
EXAMPLES
r30 = 0xffff0032
r10 = 0, r40 = 0x80008001
r20 = 1, r40 = 0x80008001
r50 = 0x0032ffff
r90 = 0x7fffffff
The h_
The h_
[ IF rguard ] h_dspidualabs r0 rsrc2 → rdest
if rguard then {
}
temp1 ← sign_ext16to32(rsrc2<15:0>)
temp2 ← sign_ext16to32(rsrc2<31:16>)
if temp1 = 0xffff8000 then temp1 ← 0x7fff
if temp2 = 0xffff8000 then temp2 ← 0x7fff
if temp1 < 0 then temp1 ← –temp1
if temp2 < 0 then temp2 ← –temp2
rdest<31:16> ← temp2<15:0>
rdest<15:0> ← temp1<15:0>
dspidualabs
dspidualabs
Initial Values
operation optionally takes a guard, specified in rguard. If a guard is present, its LSB controls
operation performs two 16-bit clipped, signed absolute value computations separately on
h_dspidualabs r0 r30 → r60
IF r10 h_dspidualabs r0 r40 → r70
IF r20 h_dspidualabs r0 r40 → r100
h_dspidualabs r0 r50 → r80
h_dspidualabs r0 r90 → r110
dspidualabs
Operation
PRELIMINARY SPECIFICATION
pseudo operation instead.
PNX1300/01/02/11 DSPCPU Operations
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
dspidualadd dspidualmul
h_dspidualabs
r60 ← 0x00010032
no change, since guard is false
r100 ← 0x7fff7fff
r80 ← 0x00320001
r110 ← 0x7fff0001
dspidualabs dspiabs
dspidualsub dspiabs
ATTRIBUTES
SEE ALSO
Result
dspalu
1, 3
No
72
—
2
2
A-68
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