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参数资料
| 型号： | ST10F168-Q3 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP144 |
| 封装： | 28 X 28 MM, PLASTIC, QFP-144 |
| 文件页数： | 11/74页 |
| 文件大小： | 479K |
| 代理商： | ST10F168-Q3 |
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ST10F168
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6 - CENTRAL PROCESSING UNIT (CPU)
The CPU includes a 4-stage instruction pipeline, a
16-bit arithmetic and logic unit (ALU) and dedi-
cated SFRs. Additional hardware has been added
for a separate multiply and divide unit, a bit-mask
generator and a barrel shifter.
Most of the ST10F168’s instructions can be exe-
cuted in one instruction cycle which requires
62.5ns at 32MHz CPU clock. For example, shift
and rotate instructions are processed in one
instruction cycle independent of the number of bit
to be shifted. Multiple-cycle instructions have
been optimized: branches are carried out in 2
cycles, 16 x 16-bit multiplication in 5 cycles and a
32/16 bit division in 10 cycles.The jump cache
reduces the execution time of repeatedly per-
formed jumps in a loop, from 2 cycles to 1 cycle.
The CPU uses a bank of 16 word registers to run
the current context. This bank of General Purpose
Registers (GPR) is physically stored within the
on-chip RAM area. A Context Pointer (CP) regis-
ter determines the base address of the active reg-
ister bank to be accessed by the CPU. The
number of register banks is only restricted by the
available internal RAM space. For easy parameter
passing, one register bank may overlap others.
A system stack of up to 2048 Byte stores tempo-
rary data. The system stack is allocated in the
on-chip RAM area, and it is accessed by the CPU
via the stack pointer (SP) register. Two separate
SFRs, STKOV and STKUN, are implicitly com-
pared against the stack pointer value on each
stack access, for the detection of a stack overflow
or underflow.
Figure 5 : CPU Block Diagram
32
Internal
RAM
2K Byte
General
Purpose
Registers
R0
R15
MDH
MLD
Barrel-Shift
Mul./Div.-HW
Bit-Mask Gen.
ALU
16-Bit
CP
SP
STKOV
STKUN
Exec. Unit
Instr. Ptr
Instr. Reg
4-Stage
Pipeline
PSW
SYSCON
BUSCON 0
BUSCON 1
BUSCON 2
BUSCON 3
BUSCON 4
ADDRSEL 1
ADDRSEL 2
ADDRSEL 3
ADDRSEL 4
Data Pg. Ptrs
Code Seg. Ptr.
CPU
256K Byte
Flash
memory
16
Bank
n
Bank
i
Bank
0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ST10F168-Q6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:16-BIT MCU WITH 256K BYTE FLASH MEMORY AND 8K BYTE RAM |
| ST10F168SQ3 | 功能描述:16位微控制器 - MCU 256K Flash 8K RAM RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT |
| ST10F168SQ6 | 功能描述:16位微控制器 - MCU 256K Flash 8K RAM RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT |
| ST10F252M | 制造商:STMicroelectronics 功能描述:16-BIT MCU WITH 256 KBYTE FLASH MEMORY AND 16 KBYTE RAM - Rail/Tube |
| ST10F267-DT | 制造商:STMicroelectronics 功能描述: |
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