Telit Wireless Solutions SL869T3-I, Руководство пользователя

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SL869T3-I Product User Guide
1VV0301546 Rev. 3
Page 17 of 68 2021-03-31
Mode Vcc Vbatt RFIC Baseband TCXO LNA
Commanded
Passive Cyclic
ON ON Cycle Cycle Cycle Cycle
Sleep Off ON Off Off Off Off
Deep Sleep
Off
ON
Off Off Off Off
4.13.1. STANDBY Modes
In these modes, both Vcc and Vbatt are applied to the module. STANDBY modes are
entered via command.
There are three situations that can be commanded:
• STANDBY
•
ACTIVE CYCLIC
•
PASSIVE CYCLIC
In addition to the time expiration, STANDBY modes can also be exited by asserting a
signal input:
•
nRESET: Resumes operation with a cold start (using assist data if available)
•
WAKEUP: Resumes operation with a hot start (assuming that the required data is
available)
Not applicable for the active cyclic standby command where it has no effect.
4.13.1.1. Commanded Standby Mode
See Table 4-1 Power Management Modes for power distribution scheme.
Entry: Issue a FORCESTANDBY command to the receiver to enter the STANDBY mode for
a specified amount of time.
The module enters a low current state until the specified time expires.
Exit: Expiration of the specified time. STANDBY is also exited if nRESET or WAKEUP is
asserted.
4.13.1.2. Commanded Active Cyclic Standby Mode
See
Table 4-1 Power Management Modes
for power distribution scheme.
Table 4-1 Power Management Modes