參數(shù)資料
型號: AMIS-53000-M
英文描述: Frequency Agile Transceiver
中文描述: 捷變頻收發(fā)器
文件頁數(shù): 60/99頁
文件大?。?/td> 2638K
代理商: AMIS-53000-M
AMIS-53000
Frequency Agile Transceiver
Data Sheet
6.7 Idle
Table 49: Idle Command
Register
Number (HEX)
Name
Code
0X03
0X04
Function
Enable the idle state
Return to idle state
0X00
Command
Table 50: Idle Configuration
Register
Number (HEX)
0X02
Name
Status/Flag2
Bits
0
2:1
0
1, 0
Function
AMIS-53000 is busy
Select state that AMIS-53000 enters on POR
Output system clock in standby mode
Select the system clock frequency
0X0C
General Options A
0X0D
General Options B
Note that there are two low-power modes for AMIS-53000 – standby and idle. Standby allows the SYSCLK output. Idle is the very low
power state without SYSCLK output.
Table 51: Idle Modes
Idle Tasks
Description
Sniff
Receiver periodic wake up and RF energy detection check
Burst Transmit
Periodic wake and transmit function
Housekeeping
Used to perform periodic temperature correction, calibration or to wake external host/controller
Standby
Low-power mode with no activity may be programmed to continue to output system clock
The AMIS-53000 allows for a low-power mode. Power requirements are reduced when the very low power 10kHz oscillator is the clock
for the device. This oscillator runs the timers for either the Sniff wake up timer, the Burst transmit timer or the housekeeping wakeup
timer. However, even when the low power 10kHz oscillator is running, the AMIS-53000 can still provide a clock signal output to an
external host/controller device such as a microprocessor after reception of a valid data packet or a housekeeping cycle where the
AMIS-53000 has been programmed to issue a wake up to the external host/controller.
The AMIS-53000 will return to this low power idle state after activities such as transmit, receive or the various timers are done and the
external host/controller writes the ‘Return to Idle’ instruction to the AMIS-53000 command register.
Setup registers descriptions:
Idle Config
- The options for idle mode must be set.
6.7.1. Idle Config
The idle configuration register is used to specify which periodic tasks are performed once the idle command is given in register 0. Any
combination of Sniff, Burst and housekeeping can be enabled.
INT to DSSN Timing:
This is the time between the AMIS-53000 issuing an interrupt to indicate that data is ready and the time
that data transfer starts with the assertion of the DSSN signal.
Idle to System Clock Stop:
Once the AMIS-53000 has completed a task and is issued the idle command, the system clock
can produce additional clock cycles to allow the external host/controller to finish its tasks.
60
AMI Semiconductor
– Aug. 05, Rev. 1.0
www.amis.com
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