AT94K10AL-25DQC Atmel, AT94K10AL-25DQC Datasheet - Page 121

• Manufacturer Part Number: AT94K10AL-25DQC
• Manufacturer: Atmel

Specifications of AT94K10AL-25DQC

• Device System Gates: 10000
• Propagation Delay Time: 12.7ns
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Operating Temperature Classification: Commercial
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Mounting: Surface Mount
• Pin Count: 208
• Package Type: PQFP
• Lead Free Status / RoHS Status: Not Compliant

4.28.7
4.28.7.1
1138I–FPSLI–1/08
Implementations
mul16x16_16
The registers R19:R18:R17:R16 will be incremented with the result of the multiplication of
0.771484375 with the ADC conversion result. In this example, the ADC result is treated as a
signed fraction number. We could also treat it as a signed integer and call it “mac16x16_32”
instead of “fmac16x16_32”. In this case, the 0.771484375 should be replaced with an integer.
Description
Usage
Statistics
Note:
Multiply of two 16-bit numbers with a 16-bit result.
R17:R16 = R23:R22 • R21:R20
Cycles: 9 + ret
Words: 6 + ret
Register usage: R0, R1 and R16 to R23 (8 registers)
mul16x16_16:
mul
movw
mul
add
mul
add
ret
1. Full orthogonality, i.e., any register pair can be used as long as the result and the two oper-
ands do not share register pairs. The routine is non-destructive to the operands.
r22, r20
r17:r16, r1:r0
r23, r20
r17, r0
r21, r22
r17, r0
; al * bl
; ah * bl
; bh * al
AT94KAL Series FPSLIC
(1)
121