參數(shù)資料
型號： M32180F8VFP
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 64 MHz, RISC MICROCONTROLLER, PQFP240
封裝： 32 X 32 MM, 0.50 MM PITCH, PLASTIC, QFP-240
文件頁數(shù)： 40/139頁
文件大?。?/td> 3774K
代理商： M32180F8VFP
6
6-5
INTERNAL MEMORY
32180 Group User’s Manual (Rev.1.0)
6.4 Registers Associated with the Internal Flash Memory
6.4.2 Flash Status Registers
There are two registers to indicate the status of the internal flash memory: Flash Status Register 1 (FSTAT1)
located in the SFR area (H’0080 01E1) and Flash Status Register 2 (FSTAT2) included in the internal flash
memory. Use these two status registers (FSTAT1 and FSTAT2) to control the programming or erase operation
performed on the internal flash memory.
Flash Status Register 1 (FSTAT1)
<Address: H’0080 01E1>
9
1011121314
b15
b8
FSTAT
1
0
<After reset: H’01>
b
Bit Name
Function
R
W
8–14
No function assigned. Fix to "0".
00
15
FSTAT
0: Busy
R
–
Ready/busy status bit
1: Ready
Flash Status Register 1 (FSTAT1) is a read-only status register used to know the status of the programming or
erase operation performed on the internal flash memory. When FSTAT = "0" (busy), the internal flash memory is
being programmed or erased, during which time do not start a new programming or erase operation on it. When
FSTAT = "1" (ready), a new programming or erase operation can be started on it.
Furthermore, while FSTAT = "0" (busy), do not operate on the FCNT4 register FRESET bit described later.
6.4.3 Flash Status Register 2 (FSTAT2)
Flash Status Register 2 (FSTAT2)
9
1011121314
b15
b8
WRERR2
WRERR1
ERASE
FBUSY
1
00
0
<After reset: H’80>
b
Bit Name
Function
R
W
8
FBUSY
0: Being programmed or erased
R
–
Flash busy bit
1: Ready state
9
No function assigned. Fix to "0".
00
10
ERASE
0: Erase normally operating or terminated
R
–
Erase status confirmation bit
1: Erase error occurred
11
WRERR1
0: Programming normally operating or terminated
R
–
Write status confirmation bit 1
1: Programming error occurred
12
WRERR2
0: Programming normally operating or terminated
R
–
Write status confirmation bit 2
1: Over-programming occurred
13–15
No function assigned. Fix to "0".
00
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參數(shù)描述
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