參數(shù)資料
型號(hào): MB91F469GBPB-GS
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 88 MHz, RISC MICROCONTROLLER, PBGA320
封裝: 27 X 27 MM, 2.46 MM HEIGHT, 1.27 MM PITCH, PLASTIC, BGA-320
文件頁數(shù): 91/159頁
文件大?。?/td> 4658K
代理商: MB91F469GBPB-GS
MB91460G Series
37
4.
Registers
4.1.
General-purpose register
Registers R0 to R15 are general-purpose registers. These registers can be used as accumulators for computation
operations and as pointers for memory access.
Of the 16 registers, enhanced commands are provided for the following registers to enable their use for particular
applications.
R13 : Virtual accumulator
R14 : Frame pointer
R15 : Stack pointer
Initial values at reset are undened for R0 to R14. The value for R15 is 00000000H (SSP value).
4.2.
PS (Program Status)
This register holds the program status, and is divided into three parts, ILM, SCR, and CCR.
All undened bits (-) in the diagram are reserved bits. The read values are always “0”. Write access to these
bits is invalid.
FP
SP
AC
. . .
XXXX XXXXH
0000 0000H
XXXX XXXXH
. . .
R0
R1
R12
R13
R14
R15
. . .
32 bits
Initial value
Bit position
bit 20
bit 0
bit 7
bit 8
bit 10
bit 16
ILM
SCR
CCR
bit 31
PRELIMINARY
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