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| 型号： | R5F2120CJFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP48 |
| 封装： | 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48 |
| 文件页数： | 5/47页 |
| 文件大小： | 432K |
| 代理商： | R5F2120CJFP |
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R8C/20 Group, R8C/21 Group
2. Central Processing Unit (CPU)
Rev.2.00 Aug 27, 2008
Page 11 of 41
REJ03B0120-0200
2.1
Data Registers (R0, R1, R2 and R3)
R0 is a 16-bit register for transfer, arithmetic, and logic operations. The same applies to R1 to R3.
R0 can be split into high-order bit (R0H) and low-order bit (R0L) to be used separately as 8-bit data registers. The
same applies to R1H and R1L as R0H and R0L. R2 can be combined with R0 to be used as a 32-bit data register
(R2R0). The same applies R3R1 as R2R0.
2.2
Address Registers (A0 and A1)
A0 is a 16-bit register for address register indirect addressing and address register relative addressing. They also
are used for transfer, arithmetic and logic operations. The same applies to A1 as A0.
A1 can be combined with A0 to be used a 32-bit address register (A1A0).
2.3
Frame Base Register (FB)
FB is a 16-bit register for FB relative addressing.
2.4
Interrupt Table Register (INTB)
INTB, a 20-bit register, indicates the start address of an interrupt vector table.
2.5
Program Counter (PC)
PC, 20 bits wide, indicates the address of an instruction to be executed.
2.6
User Stack Pointer (USP) and Interrupt Stack Pointer (ISP)
The stack pointer (SP), USP and ISP, are 16 bits wide each.
The U flag of FLG is used to switch between USP and ISP.
2.7
Static Base Register (SB)
SB is a 16-bit register for SB relative addressing.
2.8
Flag Register (FLG)
FLG is a 11-bit register indicating the CPU status.
2.8.1
Carry Flag (C)
The C flag retains a carry, borrow, or shift-out bit that has occurred in the arithmetic and logic unit.
2.8.2
Debug Flag (D)
The D flag is for debug only. Set to 0.
2.8.3
Zero Flag (Z)
The Z flag is set to 1 when an arithmetic operation resulted in 0; otherwise, 0.
2.8.4
Sign Flag (S)
The S flag is set to 1 when an arithmetic operation resulted in a negative value; otherwise, 0.
2.8.5
Register Bank Select Flag (B)
The register bank 0 is selected when the B flag is 0. The register bank 1 is selected when this flag is set to 1.
2.8.6
Overflow Flag (O)
The O flag is set to 1 when the operation resulted in an overflow; otherwise, 0.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| R5F2120CJFP#U0 | 功能描述:MCU FLASH 128K 6K CMOS 48-LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:R8C/2x/20 标准包装:250 系列:80C 核心处理器:8051 芯体尺寸:8-位 速度:16MHz 连通性:EBI/EMI，I²C，UART/USART 外围设备:POR，PWM，WDT 输入/输出数:40 程序存储器容量:- 程序存储器类型:ROMless EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-LCC（J 形引线） 包装:带卷 (TR) |
| R5F2120CKFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:RENESAS MCU R8C FAMILY / R8C/2x SERIES |
| R5F2120CKFP#U0 | 制造商:Renesas Electronics Corporation 功能描述:MCU 16-bit R8C CISC 128KB Flash 3.3V/5V 48-Pin LQFP Tray 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT R8C CISC 128KB FLASH 3.3V/5V 48LQFP - Trays 制造商:Renesas Electronics Corporation 功能描述:MCU FLASH 128K 6K CMOS 48-LQFP |
| R5F2120CKFP#V0 | 功能描述:MCU FLASH 128K 6K CMOS 48-LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:R8C/2x/20 标准包装:250 系列:80C 核心处理器:8051 芯体尺寸:8-位 速度:16MHz 连通性:EBI/EMI，I²C，UART/USART 外围设备:POR，PWM，WDT 输入/输出数:40 程序存储器容量:- 程序存储器类型:ROMless EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-LCC（J 形引线） 包装:带卷 (TR) |
| R5F21216JFP | 功能描述:MCU 3/5V 32K+2K 48-LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:R8C/2x/21 标准包装:250 系列:80C 核心处理器:8051 芯体尺寸:8-位 速度:16MHz 连通性:EBI/EMI，I²C，UART/USART 外围设备:POR，PWM，WDT 输入/输出数:40 程序存储器容量:- 程序存储器类型:ROMless EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-LCC（J 形引线） 包装:带卷 (TR) |
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