參數(shù)資料
型號(hào)： TS87C52X2-LIJD
英文描述： 8-bit CMOS Microcontroller 0-60 MHz
中文描述： 8位CMOS微控制器0-60兆赫
文件頁(yè)數(shù)： 31/54頁(yè)
文件大小： 626K
代理商： TS87C52X2-LIJD
Rev. B - Jan. 25, 1999
31
Preliminary
TS80C52X2
6.9 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 16.). 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 16. 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.
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PDF描述
TS87C52X2-LIJR 8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-LIEB 8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-LIED 8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-LIER 8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-LCJB 8-bit CMOS Microcontroller 0-60 MHz
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS87C52X2-LIJR 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-LIKB 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-LIKD 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2-LIKR 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:8-bit CMOS Microcontroller 0-60 MHz
TS87C52X2MCA 制造商:INTELC 功能描述:
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