參數(shù)資料
型號: MB91302APFF-G-020-BNDE1
元件分類: 微控制器/微處理器
英文描述: 32-BIT, MROM, 68 MHz, RISC MICROCONTROLLER, PQFP144
封裝: 0.40 MM PITCH, PLASTIC, LQFP-144
文件頁數(shù): 70/140頁
文件大小: 2841K
代理商: MB91302APFF-G-020-BNDE1
MB91301 Series
DS07-16502-4E
35
■ GENERAL PURPOSE REGISTERS
General purpose registers R0 to R15 are used by the CPU. The registers are used as the accumulator and
memory access pointers for CPU operations.
The following three registers are treated as having special meanings to enhance the operation of some instruc-
tions.
R13 : Virtual accumulator (AC)
R14 : Frame pointer (FP)
R15 : Stack pointer (SP)
The values of R0 to R14 after a reset are undefined. R15 is initialized to 0000 0000H (SSP value) .
R0
R1
R12
R13
R14
R15
AC (Accumulator)
FP (Frame Pointer)
SP (Stack Pointer)
XXXX XXXXH
0000 0000H
Initial Value
32-bit
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