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參數資料
| 型號： | TS80C31X2-LLBD |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | GT 24C 24#16 PIN PLUG |
| 中文描述： | 8-BIT, 30 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數： | 25/40頁 |
| 文件大小： | 484K |
| 代理商： | TS80C31X2-LLBD |
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Rev. A - Mar. 19, 1999
25
Preliminary
TS80C31X2
6.8 Power-Off Flag
The power-off flag allows the user to distinguish between a “cold start” reset and a “warm start” reset.
A cold start reset is the one induced by V
CC
switch-on. A warm start reset occurs while V
CC
is still applied to
the device and could be generated for example by an exit from power-down.
The power-off flag (POF) is located in PCON register (See Table 13.). POF is set by hardware when V
CC
rises
from 0 to its nominal voltage. The POF can be set or cleared by software allowing the user to determine the type
of reset.
Table 13. PCON Register
PCON - Power Control Register (87h)
7
Reset Value = 00X1 0000b
Not bit addressable
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 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
Cleared by user for general purpose usage.
Set by user for general purpose usage.
2
GF0
General purpose Flag
Cleared by user for general purpose usage.
Set by user for general purpose usage.
1
PD
Power-Down mode bit
Cleared by hardware when reset occurs.
Set to enter power-down mode.
0
IDL
Idle mode bit
Clear by hardware when interrupt or reset occurs.
Set to enter idle mode.
相關PDF資料 |
PDF描述 |
|---|---|
| TS80C31X2-LLBR | GT 24C 24#16 SKT PLUG |
| TS80C31X2-LLCB | 8-bit CMOS Microcontroller ROMless |
| TS80C31X2-LLCD | 8-bit CMOS Microcontroller ROMless |
| TS80C31X2-LLCR | 8-bit CMOS Microcontroller ROMless |
| TS80C31X2-LLEB | 8-bit CMOS Microcontroller ROMless |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TS80C31X2-LLBR | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless |
| TS80C31X2-LLCB | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless |
| TS80C31X2-LLCD | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless |
| TS80C31X2-LLCR | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless |
| TS80C31X2-LLEB | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless |
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