參數(shù)資料
型號(hào): SAF-C161O-LM3VHA
廠商: INFINEON TECHNOLOGIES AG
元件分類: 微控制器/微處理器
英文描述: 16-BIT, 20 MHz, MICROCONTROLLER, PQFP80
封裝: 0.65 MM PITCH, ROHS COMPLIANT, PLASTIC, MQFP-80
文件頁(yè)數(shù): 8/68頁(yè)
文件大?。?/td> 1121K
代理商: SAF-C161O-LM3VHA
C161K
C161O
Data Sheet
12
V2.0, 2001-01
Central Processing Unit (CPU)
The main core of the CPU consists of a 4-stage instruction pipeline, a 16-bit arithmetic
and logic unit (ALU) and dedicated SFRs. Additional hardware has been spent for a
separate multiply and divide unit, a bit-mask generator and a barrel shifter.
Based on these hardware provisions, most of the C161K/O’s instructions can be
executed in just one machine cycle which requires 80 ns at 25 MHz CPU clock. For
example, shift and rotate instructions are always processed during one machine cycle
independent of the number of bits to be shifted. All multiple-cycle instructions have been
optimized so that they can be executed very fast as well: branches in 2 cycles, a 16
× 16
bit multiplication in 5 cycles and a 32-/16 bit division in 10 cycles. Another pipeline
optimization, the so-called ‘Jump Cache’, allows reducing the execution time of
repeatedly performed jumps in a loop from 2 cycles to 1 cycle.
Figure 4
CPU Block Diagram
MCB02147
CPU
SP
STKOV
STKUN
Instr. Reg.
Instr. Ptr.
Exec. Unit
4-Stage
Pipeline
MDH
MDL
PSW
SYSCON
Context Ptr.
Mul/Div-HW
R15
R0
General
Purpose
Registers
Bit-Mask Gen
Barrel - Shifter
ALU
(16-bit)
Data Page Ptr.
Code Seg. Ptr.
Internal
RAM
R15
R0
ROM
16
32
BUSCON 0
BUSCON 1
BUSCON 2
BUSCON 3
BUSCON 4
ADDRSEL 4
ADDRSEL 3
ADDRSEL 2
ADDRSEL 1
相關(guān)PDF資料
PDF描述
SAF-C161RI-LM 16-BIT, 20 MHz, MICROCONTROLLER, PQFP100
SAB-C161RI-LF 16-BIT, 20 MHz, MICROCONTROLLER, PQFP100
SAF-C161S-L25M 16-BIT, 25 MHz, MICROCONTROLLER, PQFP80
SAB-C161S-LM3V 16-BIT, 20 MHz, MICROCONTROLLER, PQFP80
SAB-C161S-L25M 16-BIT, 25 MHz, MICROCONTROLLER, PQFP80
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