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參數(shù)資料
| 型號(hào)： | T89C51RD2-RLFCM |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| 中文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | VQFP-44 |
| 文件頁(yè)數(shù)： | 75/104頁(yè) |
| 文件大?。?/td> | 798K |
| 代理商： | T89C51RD2-RLFCM |
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75
T89C51RD2
4243G
–
8051
–
05/03
Flash Parallel
Programming
Signature Bytes
Four hardware read only registers have to be accessed with parallel static test modes
(mode TMS) in order to control the Flash parallel programmimg:
Manufacturer code
Device ID # 1: Family code
Device ID # 2: Memories size and type
Device ID # 3: Name and revision
As these registers can only be accessed by hardware, they must be read by the parallel
programmers and then copied in the XAF in order to make their values accessible by
software (ISP or API).
Set-up modes Configuration
In order to program and verify the Flash or to read the signature bytes, the T89C51RD2
is placed in specific set-up modes. (See Figure 31.)
Figure 31.
Set-Up Modes Configuration
Definition of Terms
Address Lines:
P1.0-P1.7, P2.0-P2.5, P3.4-P3.5, respectively for A0-A15.
Data Lines:
P0.0-P0.7 for D0-D7
Control Signals:
RST, PSEN, P2.6, P2.7, P3.2, P3.3, P3.6, P3.7.
Program Signals:
ALE/PROG, EA
+5V
V
CC
P0.0-P0.7
P1.0-P1.7
P2.0-P2.5
VSS
GND
D0-D7
A0-A7
A8-A13
RST
PSEN
P2.6
P2.7
P3.3
P3.6
EA
ALE/PROG
P3.7
XTAL1
4 to 6 MHz
CONTROL
SIGNALS*
PROGRAM
SIGNALS*
P3.4
A14
P3.5
A15
相關(guān)PDF資料 |
PDF描述 |
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| T89C51RD2-RLFIM | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-RLRIM | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-RLTCL | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-RLTCM | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-RLTIL | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| T89C51RD2-RLFC-M | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-RLFI-L | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-RLFIM | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-RLFI-M | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-RLRC-L | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller |
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