參數資料
型號: MS80C51-16R
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數: 18/170頁
文件大?。?/td> 4133K
代理商: MS80C51-16R
114
ATtiny4/5/9/10 [DATASHEET]
8127F–AVR–02/2013
15.7
Register Description
15.7.1
NVMCSR - Non-Volatile Memory Control and Status Register
Bit 7 - NVMBSY: Non-Volatile Memory Busy
This bit indicates the NVM memory (Flash memory and Lock Bits) is busy, being programmed. This bit is set when
a program operation is started, and it remains set until the operation has been completed.
Bit 6:0 - Res: Reserved Bits
These bits are reserved and will always be read as zero.
15.7.2
NVMCMD - Non-Volatile Memory Command Register
Bit 7:6 - Res: Reserved Bits
These bits are reserved and will always read zero.
Bit 5:0 - NVMCMD[5:0]: Non-Volatile Memory Command
These bits define the programming commands for the flash, as shown in Table 15-10.
Bit
7
6543210
NVMBSY
–NVMCSR
Read/Write
R/W
RRRRRRR
Initial Value
0
0000000
Bit
76543210
NVMCMD[5:0]
NVMCMD
Read/Write
R
R/W
Initial Value
00000000
Table 15-10. NVM Programming commands
Operation Type
NVMCMD
Mnemonic
Description
Binary
Hex
General
0b000000
0x00
NO_OPERATION
No operation
0b010000
0x10
CHIP_ERASE
Chip erase
Section
0b010100
0x14
SECTION_ERASE
Section erase
Word
0b011101
0x1D
WORD_WRITE
Word write
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