参数资料
型号: MP80C31-12D
厂商: ATMEL CORP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 12 MHz, MICROCONTROLLER, PDIP40
封装: PLASTIC, DIP-40
文件页数: 14/170页
文件大小: 4133K
代理商: MP80C31-12D
110
ATtiny4/5/9/10 [DATASHEET]
8127F–AVR–02/2013
When the NVM Controller is busy performing an operation it will signal this via the NVM Busy Flag in the NVM Con-
NVM Command Register is blocked for write access as long as the busy flag is active. This is to ensure that the
current command is fully executed before a new command can start.
Programming any part of the NVM will automatically inhibit the following operations:
All programming to any other part of the NVM
All reading from any NVM location
ATtiny4/5/9/10 support only external programming. Internal programming operations to NVM have been disabled,
which means any internal attempt to write or erase NVM locations will fail.
15.4.1
Addressing the Flash
The data space uses byte accessing but since the Flash sections are accessed as words and organized in pages,
the byte-address of the data space must be converted to the word-address of the Flash section. This is illustrated
The most significant bits of the data space address select the NVM Lock bits or the Flash section mapped to the
data memory. The word address within a page (WADDR) is held by bits [WADDRMSB:1], and the page address
(PADDR) by bits [PADDRMSB:WADDRMSB+1]. Together, PADDR and WADDR form the absolute address of a
word in the Flash section.
The least significant bit of the Flash section address is used to select the low or high byte of the word.
Figure 15-1. Addressing the Flash Memory
15.4.2
Reading the Flash
The Flash can be read from the data memory mapped locations one byte at a time. For read operations, the least
significant bit (bit 0) is used to select the low or high byte in the word address. If this bit is zero, the low byte is read,
and if it is one, the high byte is read.
00
PAGE
01
02
SECTIONEND
WORD
00
01
PAGEEND
FLASH
SECTION
FLASH
PAGE
0/1
WADDR
PADDR
1
WADDRMSB
PADDRMSB
16
ADDRESS POINTER
...
PAGE ADDRESS
WITHIN A FLASH
SECTION
WORD ADDRESS
WITHIN A FLASH
PAGE
LOW/HIGH
BYTE SELECT
WADDRMSB+1
相关PDF资料
PDF描述
MF280C51-20R 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44
MS80C51-30R 8-BIT, MROM, 30 MHz, MICROCONTROLLER, PQCC44
MS80C51-20D 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQCC44
MF280C31-25R 8-BIT, 25 MHz, MICROCONTROLLER, PQFP44
MF180C31-16D 8-BIT, 16 MHz, MICROCONTROLLER, PQFP44
相关代理商/技术参数
参数描述
MP81 制造商:未知厂家 制造商全称:未知厂家 功能描述:BRIDGE RECTIFIERS
MP810 制造商:GOOD-ARK 制造商全称:GOOD-ARK Electronics 功能描述:SILICON BRIDGE RECTIFIERS
MP-810 制造商:JAMECO BENCHPRO 功能描述:4-Piece Plier/Cutter/Screwdrivers Set
MP8100 制造商:MPS 制造商全称:Monolithic Power Systems 功能描述:Precision High-Side Current-Sense Amplifier
MP8100DS 制造商:MPS 制造商全称:Monolithic Power Systems 功能描述:Precision High-Side Current-Sense Amplifier