參數(shù)資料
型號(hào): R5F21114DFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP32
封裝: 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32
文件頁(yè)數(shù): 191/227頁(yè)
文件大?。?/td> 2039K
代理商: R5F21114DFP
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R8C/11 Group
Rev.1.20
Jan 27, 2006
page 55 of 204
REJ09B0062-0120
Interrupt Sequence
An interrupt sequence — what are performed over a period from the instant an interrupt is accepted
to the instant the interrupt routine is executed — is described here.
If an interrupt occurs during execution of an instruction, the processor determines its priority when
the execution of the instruction is completed, and transfers control to the interrupt sequence from the
next cycle. If an interrupt occurs during execution of either the SMOVB, SMOVF, SSTR or RMPA
instruction, the processor temporarily suspends the instruction being executed, and transfers control
to the interrupt sequence.
The CPU behavior during the interrupt sequence is described below. Figure 10.4 shows time re-
quired for executing the interrupt sequence.
(1) The CPU gets interrupt information (interrupt number and interrupt request priority level) by read-
ing the address 0000016. Then it clears the IR bit for the corresponding interrupt to “0” (interrupt
not requested).
(2) The FLG register immediately before entering the interrupt sequence is saved to the CPU internal
temporary register(1).
(3) The I, D and U flags in the FLG register become as follows:
The I flag is cleared to “0” (interrupts disabled).
The D flag is cleared to “0” (single-step interrupt disabled).
The U flag is cleared to “0” (ISP selected).
However, the U flag does not change state if an INT instruction for software interrupt numbers 32 to
63 is executed.
(4) The CPU’s internal temporary register (1) is saved to the stack.
(5) The PC is saved to the stack.
(6) The interrupt priority level of the accepted interrupt is set in the IPL.
(7) The start address of the relevant interrupt routine set in the interrupt vector is stored in the PC.
After the interrupt sequence is completed, the processor resumes executing instructions from the start
address of the interrupt routine.
NOTES:
1. This register cannot be used by user.
Indeterminate
SP-2
contents
SP-4
contents
VEC
contents
VEC+2
contents
Interrupt
information
Address
000016
Indeterminate
SP-2
SP-4
VEC
VEC+2
PC
CPU clock
Address bus
Data bus
WR
The indeterminate state depends on the instruction queue buffer. A read cycle occurs when the instruction queue buffer is ready
to accept instructions.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
RD
VEC+1
contents
SP-3
contents
SP-1
SP-3
VEC+1
SP-1
contents
Figure 10.4 Time Required for Executing Interrupt Sequence
10.1 Interrupt Overview
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R5F21114DFP#U0 制造商:Renesas Electronics Corporation 功能描述:MCU 16-Bit R8C CISC 16KB Flash 3.3V/5V 32-Pin LQFP Tray 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT R8C CISC 16KB FLASH 3.3V/5V 32LQFP - Trays 制造商:Renesas Electronics Corporation 功能描述:IC R8C MCU FLASH 32LQFP 制造商:Renesas Electronics Corporation 功能描述:16BIT MCU FLASH 16K SMD LQFP32 制造商:Renesas Electronics Corporation 功能描述:IC SM 16-BIT MCU WAFFLE130 制造商:Renesas Electronics Corporation 功能描述:16BIT MCU FLASH 16K, SMD, LQFP32 制造商:Renesas 功能描述:MCU 16-Bit R8C CISC 16KB Flash 3.3V/5V 32-Pin LQFP Tray
R5F21114DFP#V0 功能描述:IC R8C MCU FLASH 32LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:R8C/1x/11 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN,SCI,SPI 外圍設(shè)備:POR,PWM,溫度傳感器,WDT 輸入/輸出數(shù):21 程序存儲(chǔ)器容量:40KB(20K x 16) 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
R5F21114DFP#W4 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT R8C CISC 16KB FLASH 3.3V/5V 32LQFP - Tape and Reel
R5F21114FP 制造商:Renesas Electronics Corporation 功能描述:MCU 16-Bit R8C CISC 16KB Flash 3.3V/5V 32-Pin LQFP 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT R8C CISC 16KB FLASH 3.3V/5V 32LQFP - Trays 制造商:Renesas Electronics Corporation 功能描述:R5F21114FP
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