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参数资料
| 型号： | MC13109AFTA |
| 厂商： | MOTOROLA INC |
| 元件分类： | 无绳电话/电话 |
| 英文描述： | UNIVERSAL CORDLESS TELEPHONE SUBSYSTEM IC |
| 中文描述： | TELECOM, CORDLESS, RF AND BASEBAND CIRCUIT, PQFP48 |
| 封装： | PLASTIC, LQFP-48 |
| 文件页数： | 19/28页 |
| 文件大小： | 1307K |
| 代理商： | MC13109AFTA |
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MC13109A
19
MOTOROLA RF/IF DEVICE DATA
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Inactive Mode Operation and Hardware Interrupt
In some handset applications it may be desirable to power
down all circuitry including the microprocessor (MPU). First
put the MC13109A into the Inactive mode, which turns off the
MPU Clock Output (see Figure 18), and then disable the
microprocessor. In order to give the MPU adequate time to
power down, the MPU Clock output remains active for a
minimum of one reference counter cycle (about 200
μ
s) after
the command is given to switch into the “Inactive” mode. An
external timing circuit should be used to initiate the turn–on
sequence. The “CD Out” pin has a dual function. In the Active
and Rx modes it performs the carrier detect function. In the
Standby and Inactive modes the carrier detect circuit is
disabled and the “CD Out” pin is in a “High” state due to the
external pull–up resistor. In the Inactive mode the “CD Out”
pin is the input for the hardware interrupt function. When the
“CD Out” pin is pulled “low” by the external timing circuit, the
MC13109A switches from the Inactive to the Interrupt mode
thereby turning on the MPU Clock Output. The MPU can then
resume control of the combo IC. The “CD Out” pin must
remain low until the MPU changes the operating mode from
Interrupt to Standby, Active or Rx modes.
Figure 18. Hardware Interrupt Operation
Mode
EN
CD Out/Hardware Interrupt
MPU Clock Out
CD Out Low
Delay after MPU selects Inactive Mode to when CD turns off
CD Turns Off
External Timer
Pulls Pin Low
MPU Initiates
Mode Change
Timer Output
Disabled
MPU Initiates
Inactive Mode
“MPU Clock Out” remains active for a mnimumof one count of reference
counter after “CD Out/Hardware Interrupt” pin goes high
Active/Rx
Inactive
Interrupt
Standby/Rx/Active
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相关代理商/技术参数 |
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| MC13109FB | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Universal Cordless Telephone Subsystem IC |
| MC13109FTA | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Universal Cordless Telephone Subsystem IC |
| MC1310DIN | 功能描述:电源线滤波器 Filter 500V 10A RoHS:否 制造商:EPCOS 电压额定值:277 VAC 电流额定值:100 A 安装风格:Chassis 端接类型:Screw |
| MC1310DIN-HFP | 制造商:TDK-Lambda Corporation 功能描述:FILTER500VAC, 3 PHASE10A,, HAZMAT - Bulk |
| MC1311 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:UNIVERSAL NARROWBAND FM RECEIVER INTEGRATED CIRCUIT |
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