C8051F120-TB Silicon Laboratories Inc, C8051F120-TB Datasheet - Page 31
C8051F120-TB
Manufacturer Part Number
C8051F120-TB
Description
BOARD PROTOTYPING W/C8051F120
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F120-TB
Contents
Board
Processor To Be Evaluated
C8051F12x and C8051F13x
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F120
Silicon Family Name
C8051F12x
Kit Contents
Board
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
C8051F120
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F120-TB
Manufacturer:
Silicon Labs
Quantity:
135
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1.4.
The C8051F120/1/2/3 and C8051F130/1/2/3 devices include a multiply and accumulate engine which can
be used to speed up many mathematical operations. MAC0 contains a 16-by-16 bit multiplier and a 40-bit
adder, which can perform integer or fractional multiply-accumulate and multiply operations on signed input
values in two SYSCLK cycles. A rounding engine provides a rounded 16-bit fractional result after an addi-
tional (third) SYSCLK cycle. MAC0 also contains a 1-bit arithmetic shifter that will left or right-shift the con-
tents of the 40-bit accumulator in a single SYSCLK cycle.
16 x 16 MAC (Multiply and Accumulate) Engine
MAC0OVR
1 bit Shift
MAC0CF
MAC0AH
MAC0 A Register
MAC0FM
MAC0ACC3
Figure 1.10. MAC0 Block Diagram
MAC0AL
MAC0RNDH
16 x 16 Multiply
MAC0 Rounding Register
MAC0 Accumulator
Rounding Engine
MAC0ACC2
40 bit Add
Rev. 1.4
MAC0BH
MAC0 B Register
MAC0RNDL
C8051F120/1/2/3/4/5/6/7
MAC0ACC1
MAC0BL
C8051F130/1/2/3
1
0
MAC0MS
MAC0STA
Flag Logic
0
MAC0ACC0
31
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