參數(shù)資料
型號: MD80C32E-16/883
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, 16 MHz, MICROCONTROLLER, CDIP40
封裝: CERAMIC, DIP-40
文件頁數(shù): 61/141頁
文件大?。?/td> 7628K
代理商: MD80C32E-16/883
24
2486AA–AVR–02/2013
ATmega8(L)
tion circuit can be used. If a reset occurs while a write operation is in progress, the write
operation will be completed provided that the power supply voltage is sufficient.
I/O Memory
The I/O space definition of the ATmega8 is shown in “Register Summary” on page 309.
All AtmelAVR ATmega8 I/Os and peripherals are placed in the I/O space. The I/O locations
are accessed by the IN and OUT instructions, transferring data between the 32 general purpose
working registers and the I/O space. I/O Registers within the address range 0x00 - 0x1F are
directly bit-accessible using the SBI and CBI instructions. In these registers, the value of single
bits can be checked by using the SBIS and SBIC instructions. Refer to the “Instruction Set Sum-
mary” on page 311 for more details. When using the I/O specific commands IN and OUT, the I/O
addresses 0x00 - 0x3F must be used. When addressing I/O Registers as data space using LD
and ST instructions, 0x20 must be added to these addresses.
For compatibility with future devices, reserved bits should be written to zero if accessed.
Reserved I/O memory addresses should never be written.
Some of the Status Flags are cleared by writing a logical one to them. Note that the CBI and SBI
instructions will operate on all bits in the I/O Register, writing a one back into any flag read as
set, thus clearing the flag. The CBI and SBI instructions work with registers 0x00 to 0x1F only.
The I/O and Peripherals Control Registers are explained in later sections.
相關PDF資料
PDF描述
MC80C52EXXX-25/883:D 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CDIP40
MR80C52EXXX-12/883:R 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQCC44
MC80C52XXX-16SHXXX:D 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CDIP40
MQ80C52TXXX-30SBR 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CQFP44
MR83C154XXX-25/883D 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQCC44
相關代理商/技術參數(shù)
參數(shù)描述
MD80C51 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 44 MHz Single-Chip 8 Bit Microcontroller
MD80C51BH 制造商:ROCHESTER 制造商全稱:ROCHESTER 功能描述:CMOS SINGLE - CHIP 8-BIT MICROCOMPUTER 64K program Memory Space
MD80C51FB 制造商:Rochester Electronics LLC 功能描述:
MD80C86 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor
MD80C862 制造商:Intel 功能描述:PROCESSOR:MICRO-PROCESSOR