參數(shù)資料
型號： T89C51RD2-SLUI-M
廠商： Atmel Corp.
英文描述： 0 to 40MHz Flash Programmable 8-bit Microcontroller
中文描述： 0至40MHz可編程閃存8位微控制器
文件頁數(shù)： 25/170頁
文件大?。?/td> 1927K
代理商： T89C51RD2-SLUI-M
25
A/T89C51CC01
4129L–CAN–08/05
Registers
Table 15.
PCON Register
PCON (S:87h) – Power configuration Register
Reset Value = 00X1 0000b
7
6
5
4
3
2
1
0
SMOD1
SMOD0
-
POF
GF1
GF0
PD
IDL
Bit
Number
Bit
Mnemonic
Description
7
SMOD1
Serial port Mode bit 1
Set to select double baud rate in mode 1, 2 or 3
6
SMOD0
Serial port Mode bit 0
Clear to select SM0 bit in SCON register.
Set to select FE bit in SCON register.
5
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
4
POF
Power-Off Flag
Clear to recognize next reset type.
Set by hardware when V
cc
rises from 0 to its nominal voltage. Can also be set by
software.
3
GF1
General-purpose flag 1
One use is to indicate whether an interrupt occurred during normal operation or
during Idle mode.
2
GF0
General-purpose flag 0
One use is to indicate whether an interrupt occurred during normal operation or
during Idle mode.
1
PD
Power-down Mode bit
Cleared by hardware when an interrupt or reset occurs.
Set to activate the Power-down mode.
If IDL and PD are both set, PD takes precedence.
0
IDL
Idle Mode bit
Cleared by hardware when an interrupt or reset occurs.
Set to activate the Idle mode.
If IDL and PD are both set, PD takes precedence.
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T89C51RD2-RLUI-M 0 to 40MHz Flash Programmable 8-bit Microcontroller
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