參數(shù)資料
型號: MB91354APMT
元件分類: 微控制器/微處理器
英文描述: 32-BIT, MROM, 50 MHz, RISC MICROCONTROLLER, PQFP176
封裝: 0.50 MM PITCH, LEAD FREE, PLASTIC, LQFP-176
文件頁數(shù): 70/140頁
文件大?。?/td> 3803K
代理商: MB91354APMT
MB91350A Series
DS07-16503-5E
35
RP (Return Pointer)
The return pointer contains the address to which to return from a subroutine.
When the CALL instruction is executed, the value in the PC is transferred to the RP.
When the RET instruction is executed, the value in the RP is transferred to the PC.
The initial value after a reset is indeterminate.
SSP (System Stack Pointer)
The SSP is the system stack pointer and functions as R15 when the S flag is “0”.
The SSP can be specified explicitly.
The SSP is also used as the stack pointer that specifies the stack for saving the PS and PC when an EIT event
occurs.
The initial value after a reset is 00000000H.
USP (User Stack Pointer)
The USP is the user stack pointer and functions as R15 when the S flag is “1”.
The USP can be specified explicitly.
The initial value after a reset is indeterminate.
This pointer cannot be used by the RETI instruction.
Multiply & Divide Registers
These registers are 32-bit wide registers that store the results of multiplication and division operations.
The initial value after a reset is indeterminate.
Initial Value
XXXXXXXXH
bit 31
bit 0
RP
Initial Value
00 000 000 H
bit 31
bit 0
SSP
Initial Value
XXXXXXXXH
bit 31
bit 0
USP
bit 31
bit 0
MDH
MDL
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