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参数资料
型号： ST72F324LJ2T5
厂商： STMICROELECTRONICS
元件分类： 微控制器/微处理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
封装： 10 X 10 MM, TQFP-44
文件页数： 68/154页
文件大小： 3519K
代理商： ST72F324LJ2T5
ST72324Lxx
20/154
5 CENTRAL PROCESSING UNIT
5.1 INTRODUCTION
This CPU has a full 8-bit architecture and contains
six internal registers allowing efficient 8-bit data
manipulation.
5.2 MAIN FEATURES
■ Enable executing 63 basic instructions
■ Fast 8-bit by 8-bit multiply
■ 17
main addressing modes (with indirect
addressing mode)
■ Two 8-bit index registers
■ 16-bit stack pointer
■ Low power HALT and WAIT modes
■ Priority maskable hardware interrupts
■ Non-maskable software/hardware interrupts
5.3 CPU REGISTERS
The six CPU registers shown in Figure 9 are not
present in the memory mapping and are accessed
by specific instructions.
Accumulator (A)
The Accumulator is an 8-bit general purpose reg-
ister used to hold operands and the results of the
arithmetic and logic calculations and to manipulate
data.
Index Registers (X and Y)
These 8-bit registers are used to create effective
addresses or as temporary storage areas for data
manipulation. (The Cross-Assembler generates a
precede instruction (PRE) to indicate that the fol-
lowing instruction refers to the Y register.)
The Y register is not affected by the interrupt auto-
matic procedures.
Program Counter (PC)
The program counter is a 16-bit register containing
the address of the next instruction to be executed
by the CPU. It is made of two 8-bit registers PCL
(Program Counter Low which is the LSB) and PCH
(Program Counter High which is the MSB).
Figure 9. CPU Registers
ACCUMULATOR
X INDEX REGISTER
Y INDEX REGISTER
STACK POINTER
CONDITION CODE REGISTER
PROGRAM COUNTER
70
1C
1I1 H I0 N Z
RESET VALUE = RESET VECTOR @ FFFEh-FFFFh
70
0
7
15
8
PCH
PCL
15
8
70
RESET VALUE = STACK HIGHER ADDRESS
RESET VALUE = 1X
11X 1X X
RESET VALUE = XXh
X = Undefined Value
1
相关PDF资料
PDF描述
ST72324BLJ4B5/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32
ST72324BLJ4B6/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32
ST72324BLJ4T1/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP44
ST72324BLJ4T5/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP44
ST72324BLJ4T6/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP44
相关代理商/技术参数
参数描述
ST72F324LJ2T5E 制造商:STMicroelectronics 功能描述:3 VOLT LEADFREE - Trays
ST72F324LJ2T5TR 功能描述:8位微控制器 -MCU 3V Range 8B MCU 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
ST72F324LJ2T6 功能描述:8位微控制器 -MCU ST72F324L ST72324BL 3V RANGE 8B MCU 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
ST72F324LJ4T6 功能描述:8位微控制器 -MCU ST72F324L ST72324BL 3V RANGE 8B MCU 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
ST72F324LJ4T6TR 功能描述:8位微控制器 -MCU 3V Range 8B MCU 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
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