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| 型號： | SDA 5251 |
| 廠商： | SIEMENS AG |
| 英文描述： | TVTEXT 8-Bit Microcontroller(ROM-Versions )(TV視頻的8位微控制器（含ROM 型 ）) |
| 中文描述： | TVTEXT 8位微控制器（ROM的版本）（電視視頻的8位微控制器（含光盤型）） |
| 文件頁數(shù)： | 77/143頁 |
| 文件大?。?/td> | 1050K |
| 代理商： | SDA 5251 |
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SDA 525x
Semiconductor Group
77
1998-04-08
Power Control Register PCON
Entering the idle mode is done by two consecutive instructions immediately following
each other. The first instruction has to set bit IDLE (PCON.0) and must not set bit IDLS
(PCON.5). The following instruction has to set bit IDLS (PCON.5) and must not set bit
IDLE (PCON.0). Bits IDLE and IDLS will automatically be cleared after having been set.
This double-instruction sequence is implemented to minimize the chance of
unintentionally entering the idle mode. The following instruction sequence may serve as
an example:
ORL
PCON,#00000001
B
Set bit IDLE, bit IDLS must not be set.
ORL
PCON,#00100000
B
Set bit IDLS, bit IDLE must not be set.
The instruction that sets bit IDLS is the last instruction executed before going into idle
mode.
The idle mode can be terminated by activation of any enabled interrupt (or a hardware
reset). The CPU-operation is resumed, the interrupt will be serviced and the next
instruction to be executed after RETI-instruction will be the one following the instruction
that set the bit IDLS. The port state and the contents of SFRs are held during idle mode.
Entering the power-down mode is done by two consecutive instructions immediately
following each other. The first instruction has to set bit PDE (PCON.1) and must not set
bit PDS (PCON.6). The following instruction has to set bit PDS (PCON.6) and must not
set bit PDE (PCON.1). Bits PDE and PDS will automatically be cleared after having been
set. This double-instruction sequence is implemented to minimize the chance of
Power Control Register
Default after reset: 000xxx00
(MSB)
SMOD
PDS
PCON
SFR-Address 87
H
(LSB)
IDLE
IDLS
–
–
–
PDE
PDS
Power-down start bit. The instruction that sets the PDS-flag is
the last instruction before entering the power down mode.
IDLS
IDLE start bit. The instruction that sets the PDS-flag is the last
instruction before entering the idle mode.
PDE
Power-down enable bit. When set, starting the power-down
mode is enabled.
IDLE
Idle enable bit. When set, starting the idle mode is enabled.
SMOD
Baud rate control for serial interface; if set, the baud rate is
doubled.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SDA 5252 | TVTEXT 8-Bit Microcontroller(ROM-Versions )(TV視頻的8位微控制器（含ROM 型 ）) |
| SDA 5254 | TVTEXT 8-Bit Microcontroller(ROM-Versions )(TV視頻的8位微控制器（含ROM 型 ）) |
| SDA5254M | ICs for Consumer Electronics |
| SDA525X | ICs for Consumer Electronics |
| SDA 5250 | TVTEXT 8-Bit Microcontroller(ROMLess-Versions )(TV視頻的8位微控制器（無ROM 型 ）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SDA5251-2 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ICs for Consumer Electronics |
| SDA5251M | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ICs for Consumer Electronics |
| SDA5251M-2 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ICs for Consumer Electronics |
| SDA5252 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ICs for Consumer Electronics |
| SDA5252-2 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:ICs for Consumer Electronics |
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