- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄25627 > MR83C154XXX-16P883D (ATMEL CORP) 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQCC44 PDF資料下載
參數(shù)資料
| 型號： | MR83C154XXX-16P883D |
| 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, CQCC44 |
| 封裝： | LCC-44 |
| 文件頁數(shù)： | 18/28頁 |
| 文件大?。?/td> | 6193K |
| 代理商： | MR83C154XXX-16P883D |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁當前第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁
25
2467X–AVR–06/11
ATmega128
ation 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 ATmega128 is shown in “Register Summary” on page 362.
All Atmel AVRATmega128 I/Os and peripherals are placed in the I/O space. All I/O locations
may be accessed by the LD/LDS/LDD and ST/STS/STD instructions, transferring data between
the 32 general purpose working registers and the I/O space. I/O registers within the address
range $00 - $1F 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 section for more details. When using the I/O specific commands IN and OUT, the
I/O addresses $00 - $3F must be used. When addressing I/O registers as data space using LD
and ST instructions, $20 must be added to these addresses. The ATmega128 is a complex
microcontroller with more peripheral units than can be supported within the 64 location reserved
in Opcode for the IN and OUT instructions. For the Extended I/O space from $60 - $FF in SRAM,
only the ST/STS/STD and LD/LDS/LDD instructions can be used. The Extended I/O space is
replaced with SRAM locations when the ATmega128 is in the ATmega103 compatibility mode.
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 $00 to $1F only.
The I/O and peripherals control registers are explained in later sections.
External Memory
Interface
With all the features the External Memory Interface provides, it is well suited to operate as an
interface to memory devices such as External SRAM and Flash, and peripherals such as LCD-
display, A/D, and D/A. The main features are:
Four different wait-state settings (including no wait-state).
Independent wait-state setting for different extErnal Memory sectors (configurable sector size).
The number of bits dedicated to address high byte is selectable.
Bus-keepers on data lines to minimize current consumption (optional).
Overview
When the eXternal MEMory (XMEM) is enabled, address space outside the internal SRAM
becomes available using the dedicated External Memory pins (see Figure 1 on page 2, Table 27
shown in Figure 11.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MR80C52XXX-30/883:RD | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CQCC44 |
| MQ80C32-36/883R | 8-BIT, 36 MHz, MICROCONTROLLER, CQFP44 |
| MD83C154DXXX-12/883 | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CDIP40 |
| MF280C51-30D | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, PQFP44 |
| MR80C32E-16P883 | 8-BIT, 16 MHz, MICROCONTROLLER, CQCC44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MR850 | 功能描述:整流器 3.0 Amp 50 Volt 150ns RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Standard Recovery Rectifiers 配置: 反向電壓:100 V 正向電壓下降: 恢復時間:1.2 us 正向連續(xù)電流:2 A 最大浪涌電流:35 A 反向電流 IR:5 uA 安裝風格:SMD/SMT 封裝 / 箱體:DO-221AC 封裝:Reel |
| MR850 _AY _10001 | 制造商:PanJit Touch Screens 功能描述: |
| MR850 R0 | 制造商:SKMI/Taiwan 功能描述:Diode Switching 50V 3A 2-Pin DO-201AD T/R |
| MR850_ R2 _10001 | 制造商:PanJit Touch Screens 功能描述: |
| MR850_09 | 制造商:PANJIT 制造商全稱:Pan Jit International Inc. 功能描述:SOFT RECOVERY, FAST SWITCHING PLASTIC RECTIFIER |
發(fā)布緊急采購，3分鐘左右您將得到回復。