User's Manual
Table Of Contents
- Contents
- Tables
- Figures
- 1 Introduction
- 2 Interface Characteristics
- 2.1 Application Interface
- 2.2 RF Antenna Interface
- 2.3 Sample Application
- 3 Operating Characteristics
- 3.1 Operating Modes
- 3.2 Power Up/Power Down Scenarios
- 3.3 Power Saving
- 3.4 Power Supply
- 3.5 Operating Temperatures
- 3.6 Electrostatic Discharge
- 3.7 Blocking against RF on Interface Lines
- 3.8 Reliability Characteristics
- 4 Mechanical Dimensions, Mounting and Packaging
- 5 Regulatory and Type Approval Information
- 6 Document Information
- 7 Appendix
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ELS61-AUS Hardware Interface Description
3.3 Power Saving
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ELS61-AUS_HID_v00.031 2016-06-03
Confidential / Preliminary
Page 65 of 102
3.3.3 Wake-up via RTS0
RTS0 can be used to wake up ELS61-AUS from SLEEP mode configured with AT^SPOW.
Assertion of RTS0 (i.e., toggle from inactive high to active low) serves as wake up event, thus
allowing an external application to almost immediately terminate power saving. After RTS0
assertion, the CTS0 line signals module wake up, i.e., readiness of the AT command interface.
It is therefore recommended to enable RTS/CTS flow control (default setting).
Figure 37 shows the described RTS0 wake up mechanism.
Figure 37: Wake-up via RTS0
RTS0
CTS0
TXD0
RXD0
AT command
Reply URC
RTS assertion (falling edge)
Wake up from SLEEP mode
Return to SLEEP mode
RTS back