参数资料
型号: SAFC505A-2R
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44
封装: METRIC, PLASTIC, QFP-44
文件页数: 8/88页
文件大小: 1224K
代理商: SAFC505A-2R
C505/C505C/C505A/C505CA
Data Sheet
12
12.00
CPU
The C505 is efficient both as a controller and as an arithmetic processor. It has extensive facilities
for binary and BCD arithmetic and excels in its bit-handling capabilities. Efficient use of program
memory results from an instruction set consisting of 44 % one-byte, 41 % two-byte, and 15% three-
byte instructions. With a 16 MHz crystal, 58% of the instructions are executed in 375 ns (20MHz:
300 ns).
Special Function Register PSW (Address D0H)
Reset Value : 00H
Bit
Function
CY
Carry Flag
Used by arithmetic instruction.
AC
Auxiliary Carry Flag
Used by instructions which execute BCD operations.
F0
General Purpose Flag
RS1
RS0
Register Bank Select Control Bits
These bits are used to select one of the four register banks.
OV
Overflow Flag
Used by arithmetic instruction.
F1
General Purpose Flag
P
Parity Flag
Set/cleared by hardware after each instruction to indicate an odd/even
number of "one" bits in the accumulator, i.e. even parity.
CY
AC
F0
RS1
RS0
OV
F1
P
D0H
PSW
D7H
D6H
D5H
D4H
D3H
D2H
D1H
D0H
Bit No.
MSB
LSB
RS1
RS0
Function
0
Bank 0 selected, data address 00H-07H
0
1
Bank 1 selected, data address 08H-0FH
1
0
Bank 2 selected, data address 10H-17H
1
Bank 3 selected, data address 18H-1FH
相关PDF资料
PDF描述
SAH-C505-L 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44
SAH-C505A-L 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44
SAK-C505A-4R 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44
SAB-C505A-4E 8-BIT, OTPROM, 20 MHz, MICROCONTROLLER, PQFP44
SAB-C505A-L 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44
相关代理商/技术参数
参数描述
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SAF-C505CA-2RM CA 功能描述:8位微控制器 -MCU 8-Bit Single Chip Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAF-C505CA-2RM CATR 制造商:Infineon Technologies AG 功能描述: