參數(shù)資料
型號(hào)： SAB-XC167CI-16F20F
廠商： INFINEON TECHNOLOGIES AG
元件分類(lèi)： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP144
封裝： 0.50 MM PITCH, PLASTIC, TQFP-144
文件頁(yè)數(shù)： 19/80頁(yè)
文件大?。?/td> 2477K
代理商： SAB-XC167CI-16F20F
XC167
Derivatives
Functional Description
Data Sheet
22
V1.1, 2003-06
Preliminary
the number of bits to be shifted. Also multiplication and most MAC instructions execute
in one single cycle. All multiple-cycle instructions have been optimized so that they can
be executed very fast as well: for example, a 32-/16-bit division is started within 4 cycles,
while the remaining 15 cycles are executed in the background. Another pipeline
optimization, the branch target prediction, allows eliminating the execution time of
branch instructions if the prediction was correct.
The CPU has a register context consisting of up to three register banks with 16 wordwide
GPRs each at its disposal. One of these register banks is physically allocated within the
on-chip DPRAM area. A Context Pointer (CP) register determines the base address of
the active register bank to be accessed by the CPU at any time. The number of register
banks is only restricted by the available internal RAM space. For easy parameter
passing, a register bank may overlap others.
A system stack of up to 32 Kwords is provided as a storage for temporary data. The
system stack can be allocated to any location within the address space (preferably 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 compared against the stack
pointer value upon each stack access for the detection of a stack overflow or underflow.
The high performance offered by the hardware implementation of the CPU can efficiently
be utilized by a programmer via the highly efficient XC167 instruction set which includes
the following instruction classes:
– Standard Arithmetic Instructions
– DSP-Oriented Arithmetic Instructions
– Logical Instructions
– Boolean Bit Manipulation Instructions
– Compare and Loop Control Instructions
– Shift and Rotate Instructions
– Prioritize Instruction
– Data Movement Instructions
– System Stack Instructions
– Jump and Call Instructions
– Return Instructions
– System Control Instructions
– Miscellaneous Instructions
The basic instruction length is either 2 or 4 bytes. Possible operand types are bits, bytes
and words. A variety of direct, indirect or immediate addressing modes are provided to
specify the required operands.
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