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参数资料
| 型号： | ST52510F3M6 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | MICROCONTROLLER, PDSO20 |
| 封装： | SOP-20 |
| 文件页数： | 50/136页 |
| 文件大小： | 3335K |
| 代理商： | ST52510F3M6 |
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Figure 2.2 Data Processing Unit (DPU)
The DPU receives, stores and sends the
instructions deriving from the Program/Data
Memory, Register File or from the peripherals. It is
controlled by the CU on the basis of the decoded
instruction. The Fuzzy registers store the partial
results of the fuzzy computation. The accumulator
register is used by the ALU and is not accessible
directly: the instructions used by the ALU can
address all the Register File locations as
operands, allowing a more compact code and a
faster execution.
The following addressing modes are available:
inherent, immediate, direct, indirect, bit direct.
2.1.1 Program Counter.
The Program Counter (PC) is a 16-bit register that
contains the address of the next memory location
to be processed by the core. This memory location
may be both an instruction or data address.
The Program Counter’s 16-bit length allows the
direct addressing of a maximum of 64 Kbytes in the
Program/Data Memory space.
The PC can be changed in the following ways:
■ JP (Jump)
PC = Jump Address
■ Interrupt
PC = Interrupt Vector
■ RETI
PC = Pop (stack)
■ RET
PC = Pop (stack)
■ CALL
PC = Subroutines address
■ Reset
PC = Reset Vector
■ Normal Instruction
PC = PC + instr. length
2.1.2 Flags.
The ST FIVE core includes different sets of flags
that correspond to 2 different modes: normal mode
and interrupt mode. Each set of flags consist of a
CARRY flag (C), ZERO flag (Z) and SIGN flag (S).
Each set is stacked: one set of flags is used during
normal operation and other sets are used during
each level of interrupt. Formally, the user has to
manage only one set of flags: C, Z and S since the
flag stack operation is performed automatically.
PROGRAM COUNTER
REGISTER
FILE
256 Bytes
REGISTER FILE
ADDRESS
ACCUMULATOR
DECISION
REGISTERS
ALU
FLAGS REG.
Memory Address
Peripherals
Control Unit
Program Memory
Input Registers
Peripherals
Interrupts Unit
PROCESSOR
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ST52510G2 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-BIT ICU WITH 10-BIT ADC. TWO TIMERS/PWM. I2C. SPI. SCI. UP TO 8K FLASH |
| ST52510G3 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-BIT ICU WITH 10-BIT ADC. TWO TIMERS/PWM. I2C. SPI. SCI. UP TO 8K FLASH |
| ST52510K2 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-BIT ICU WITH 10-BIT ADC. TWO TIMERS/PWM. I2C. SPI. SCI. UP TO 8K FLASH |
| ST52510K3 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-BIT ICU WITH 10-BIT ADC. TWO TIMERS/PWM. I2C. SPI. SCI. UP TO 8K FLASH |
| ST52510Y2 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-BIT ICU WITH 10-BIT ADC. TWO TIMERS/PWM. I2C. SPI. SCI. UP TO 8K FLASH |
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