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參數(shù)資料
| 型號(hào)： | PCF5083 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | STEEL COVER |
| 中文描述： | GSM信號(hào)處理IC |
| 文件頁(yè)數(shù)： | 18/136頁(yè) |
| 文件大?。?/td> | 602K |
| 代理商： | PCF5083 |
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1996 Oct 29
18
Philips Semiconductors
Objective specification
GSM signal processing IC
PCF5083
8.2.2
M
OBILE SWITCH-OFF PROCEDURE
The switch-off request to the System Controller is initiated
via a LOW-to-HIGH transition and hold of pin ONKEY for
longer than 1 second or a LOW level on pin LOWVOLT.
The HWCTRL_INT interrupt is activated if one of these
conditions has set it’s corresponding flag in register
HWCTRL_REG.
The next step is to deactivate the POWON signal.
Therefore the flag HWCTRL_REG[SWOFF] has to be set.
If the SWOFF flag is not set within 8 seconds (see
Section 8.2.3) and the Watchdog Timer expires, POWON
is deactivated without any further interaction. The SWOFF
flag is automatically cleared when the mobile is switched
on again.
The PCF5083 is immediately and under all conditions
forced into the off state with RSTO asserted LOW.
Table 6
Mobile switch-off request conditions
ONKEY
LOWVOLT
COMB_INT
H
H
X
H
L
H
X
H
L
H
L
H
L
It should be noted that:
If POWON is LOW (switch-off state), all outputs of the
PCF5083 except POWON and NPOWON are in their
high-impedance state.
The hardware control interrupt (HWCTRL_INT) is not
asserted externally but stays internally pending during
Sleep mode. The timing generator unit is forced into
wake-up state if the hardware control interrupt is
asserted internally.
Other interrupt conditions, caused by the MMI
power-down unit and the real time clock unit, are also
indicated with the hardware control interrupt. These
conditions are mentioned in the appropriate sections.
The interrupt flags in register HWCTRL_REG have to be
cleared by the System Controller to deactivate the
interrupt condition. A flag is cleared by writing a logic 1
to its bit location.
Table 7
Mobile switch-off conditions
HWCTRL_REG[SWOFF]
OFF/WATCHDOG TIMER EXPIRES
RSTO
POWON
L
no
no
yes
X
H
H
H
L
H
L
H
L
X
H
L
H
L
H
L
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| PCF5083H/001/F2 | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:GSM signal processing IC |
| PCF5083H/5V2/F3 | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:GSM signal processing IC |
| PCF5083H/F2 | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:GSM signal processing IC |
| PCF51AC128ACFUE | 功能描述:32位微控制器 - MCU 32 Bit 128K FLASH 32K RAM CAN EN RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| PCF51AC128ACLKE | 功能描述:32位微控制器 - MCU 32 Bit 128K FLASH 32K RAM CAN EN RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:90 MHz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
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