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參數(shù)資料
| 型號(hào)： | T89C51RD2-SLRIM |
| 廠商： | TEMIC SEMICONDUCTORS |
| 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, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁(yè)數(shù)： | 17/104頁(yè) |
| 文件大小： | 798K |
| 代理商： | T89C51RD2-SLRIM |
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17
T89C51RD2
4243G
–
8051
–
05/03
Table 7.
Auxiliary Register (08EH)
AUXR
Address 08EH
-
-
M0
-
XRS1
XRS0
EXTRA
M
AO
Reset value
X
X
0
X
1
0
0
0
Symbol
Function
-
Not implemented, reserved for future use.
(1)
1.
User software should not write 1s to reserved bits. These bits may be used in future 8051
family products to invoke new features. In that case, the reset or inactive value of the
new bit will be 0, and its active value will be 1. The value read from a reserved bit is
indeterminate.
AO
Disable/Enable ALE
AO
Operating Mode
0
ALE is emitted at a constant rate of 1/6 the oscillator frequency (or 1/3 if X2
mode is used)
1
ALE is active only during a MOVX or MOVC instruction
EXTRAM
Internal/External RAM (00H-FFH) access using MOVX @ Ri/ @ DPTR
EXTRAM
Operating Mode
0
Internal XRAM access using MOVX @ Ri/ @ DPTR
1
External data memory access
XRS0
XRS1
XRAM size: Accessible size of the XRAM
XRS1:0
XRAM size
0 0
256 bytes
0 1
512 bytes
1 0
768 bytes (default)
1 1
1024 bytes
M0
Stretch MOVX control: the RD/ and the WR/ pulse length is increased according to the
value of M0
M0
Pulse length in clock period
0
6
1
30
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| T89C51RD2-SLSCL | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-SLSCM | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-SLSIL | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-SLSIM | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-SLUCM | 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-SLRI-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-SLSCL | 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-SLSC-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-SLSCM | 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-SLSC-M | 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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