AT94K05AL-25BQC Atmel, AT94K05AL-25BQC Datasheet - Page 128
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AT94K05AL-25BQC
Manufacturer Part Number
AT94K05AL-25BQC
Description
IC FPSLIC 5K GATE 25MHZ 144LQFP
Manufacturer
Atmel
Series
FPSLIC®r
Specifications of AT94K05AL-25BQC
Core Type
8-bit AVR
Speed
25MHz
Interface
I²C, UART
Program Sram Bytes
4K-16K
Fpga Sram
2kb
Data Sram Bytes
4K ~ 16K
Fpga Core Cells
256
Fpga Gates
5K
Fpga Registers
436
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C
Package / Case
144-LQFP
For Use With
ATSTK594 - BOARD FPSLIC DAUGHTER FOR STK500
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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4.28.7.7
128
AT94KAL Series FPSLIC
Comment on Implementations
All 16-bit x 16-bit = 32-bit functions implemented here start by clearing the R2 register, which is
just used as a “dummy” register with the “add with carry” (ADC) and “subtract with carry” (SBC)
operations. These operations do not alter the contents of the R2 register. If the R2 register is not
used elsewhere in the code, it is not necessary to clear the R2 register each time these functions
are called, but only once prior to the first call to one of the functions.
add
fmulsu
fmuls r23, r21
movw
fmul
adc
adc
adc
adc
sbc
add
adc
adc
fmulsu
sbc
add
adc
adc
ret
r16, r0
r5:r4,r1:r0
r22, r20
r4, r2
r17, r1
r18, r4
r19, r5
r23, r20
r19, r2
r17, r0
r18, r1
r19, r2
r19, r2
r17, r0
r18, r1
r19, r2
r21, r22
; ( (signed)ah * (signed)bh ) << 1
; ( al * bl ) << 1
; ( (signed)ah * bl ) << 1
; ( (signed)bh * al ) << 1
1138I–FPSLI–1/08
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