AT94K10AL-25AJI Atmel, AT94K10AL-25AJI Datasheet - Page 126

• Manufacturer Part Number: AT94K10AL-25AJI
• Description: IC FPSLIC 10K GATE 25MHZ 84PLCC
• Manufacturer: Atmel
• Series: FPSLIC®r

Specifications of AT94K10AL-25AJI

• Core Type: 8-bit AVR
• Speed: 25MHz
• Interface: I²C, UART
• Program Sram Bytes: 20K-32K
• Fpga Sram: 4kb
• Data Sram Bytes: 4K ~ 16K
• Fpga Core Cells: 576
• Fpga Gates: 10K
• Fpga Registers: 846
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 84-PLCC
• For Use With: ATSTK594 - BOARD FPSLIC DAUGHTER FOR STK500
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

4.28.7.5
126
AT94KAL Series FPSLIC
fmuls16x16_32
Description
Usage
Statistics
Note:
Signed fractional multiply of two 16-bit numbers with a 32-bit result.
R19:R18:R17:R16 = (R23:R22 • R21:R20) << 1
Cycles: 20 + ret
Words: 16 + ret
Register usage: R0 to R2 and R16 to R23 (11 registers)
fmuls16x16_32:
clr
fmuls r23, r21
movw
fmul
adc
movw
fmulsu
sbc
add
adc
adc
fmulsu
sbc
add
adc
adc
ret
1. The routine is non-destructive to the operands.
r2
r19:r18, r1:r0
r22, r20
r18, r2
r17:r16, r1:r0
r19, r2
r17, r0
r18, r1
r19, r2
r19, r2
r17, r0
r18, r1
r19, r2
r23, r20
r21, r22
; ( (signed)ah * (signed)bh ) << 1
; ( al * bl ) << 1
; ( (signed)ah * bl ) << 1
; Sign extend
; ( (signed)bh * al ) << 1
; Sign extend
(1)
1138I–FPSLI–1/08