參數(shù)資料
型號： R5F21238KFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP48
封裝： 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件頁數(shù)： 28/38頁
文件大?。?/td> 473K
代理商： R5F21238KFP
Section 2 CPU
Rev. 2.00 Aug. 28, 2007 Page 23 of 1106
REJ09B0230-0200
2.3.3
Immediate Data Formats
Immediate data of eight bits is placed in the instruction code.
For the MOV, ADD, and CMP/EQ instructions, the immediate data is sign-extended to longword
and then calculated. For the TST, AND, OR, and XOR instructions, the immediate data is zero-
extended to longword and then calculated. Thus, if the immediate data is used for the AND
instruction, the upper 24 bits in the destination register are always cleared.
The immediate data of word or longword is not placed in the instruction code. It is placed in a
table in memory. The table in memory is accessed by the MOV immediate data instruction in PC
relative addressing mode with displacement.
2.4
Features of Instructions
2.4.1
RISC Type
The instructions are RISC-type instructions with the following features:
Fixed 16-Bit Length: All instructions have a fixed length of 16 bits. This improves program code
efficiency.
One Instruction per Cycle: Since pipelining is used, basic instructions can be executed in one
cycle.
Data Size: The basic data size for operations is longword. Byte, word, or longword can be
selected as the memory access size. Byte or word data in memory is sign-extended to longword
and then calculated. Immediate data is sign-extended to longword for arithmetic operations or
zero-extended to longword size for logical operations.
Table 2.2
Word Data Sign Extension
CPU in this LSI
Description
Example of Other CPUs
MOV.W
@(disp,PC),R1
ADD
R1,R0
........
.DATA.W H'1234
Sign-extended to 32 bits, R1
becomes H'00001234, and is
then operated on by the ADD
instruction.
ADD.W #H'1234,R0
Note:
*
Immediate data is accessed by @(disp,PC).
相關(guān)PDF資料
PDF描述
R5F21227JFP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP48
R5F21236KFP 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP48
R5F2123AKFP 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP48
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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R5F2123AJFP#U0 功能描述:IC R8C/23 MCU FLASH 48LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:R8C/2x/23 標(biāo)準(zhǔn)包裝:96 系列:PIC® 16F 核心處理器:PIC 芯體尺寸:8-位 速度:20MHz 連通性:I²C，SPI 外圍設(shè)備:欠壓檢測/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):11 程序存儲器容量:3.5KB（2K x 14） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:128 x 8 電壓 - 電源 (Vcc/Vdd):2.3 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 包裝:管件
R5F2123AKFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:RENESAS MCU R8C FAMILY / R8C/2x SERIES
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