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參數(shù)資料
| 型號(hào)： | PCA5007 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Pager baseband controller |
| 中文描述： | 傳呼機(jī)基帶控制器 |
| 文件頁(yè)數(shù)： | 67/112頁(yè) |
| 文件大?。?/td> | 604K |
| 代理商： | PCA5007 |
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1998 Oct 07
67
Philips Semiconductors
Product specification
Pager baseband controller
PCA5007
6.22.9
DC/DC C
ONTROL
R
EGISTER
(DCCON0)
The DCCON0 special function register is used to control the operation of the on-chip DC/DC converter.
Table 56
DC/DC Control Register (DCCON0, SFR address D1H)
Table 57
Description of the DCCON0 bits
7
6
5
4
3
2
1
0
OFF
SBY
RXE
SBLI
STB
BLI
BIT
SYMBOL
FUNCTION
DCCON0.7
OFF
Writing this SFR bit to logic 1 puts the DC/DC converter in the off mode (independent of
other control bits).
Writing this SFR bit to logic 1 puts the DC/DC converter in standby mode, where the
DC/DC converter is clocked from the 76.8 kHz oscillator and the ripple voltage will be
higher. If the DC/DC converter is unable to deliver enough current in SBY mode, the
software has to reset the SBY mode.
Writing this SFR bit to logic 1 uses the stored set of coefficients from a local register to
force the DC/DC converter into the state which is appropriate for the required current.
The contents of this local register are maintained when the DC/DC converter is set into
off state. For the first time after connecting V
BAT
a set of default coefficients is used.
Writing this bit to logic 0 copies the actual coefficients used momentary by the DC/DC
converter back to the local register.
Writing this SFR bit to logic 1 enables the circuitry for measurement of the battery
voltage. The new BLI value is valid 0.5 ms later. In order to make a new measurement,
the receiver should draw current (continuous mode of DC/DC converter). If SBLI is
logic 0 (BLI measurement disabled) BLI will go to HIGH.
unused
unused
Set by the DC/DC converter after power-up
. Reset by the DC/DC converter if the
converter is not able to deliver the required power. The signal is set in SBY and non
SBY mode. This bit is read only.
Battery low indicator
. Set by the DC/DC converter if V
BAT
< 1100 mV
±
50 mV. This bit
is read only.
DCCON0.6
SBY
DCCON0.5
RXE
DCCON0.4
SBLI
DCCON0.3
DCCON0.2
DCCON0.1
STB
DCCON0.0
BLI
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA5007H | Pager baseband controller |
| PCA5010 | Pager baseband controller |
| PCA5010H | Pager baseband controller |
| PCA82C200 | STAND-ALONE CAN-CONTROLLER |
| PCA82C200P | STAND-ALONE CAN-CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA5007H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Pager baseband controller |
| PCA5007H/XXX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| PCA5010 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Pager baseband controller |
| PCA5010H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Pager baseband controller |
| PCA5010H/XXX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MICROCONTROLLER|8-BIT|8051 CPU|CMOS|QFP|48PIN|PLASTIC |
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