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H330S Hardware User Manual
Page 30 of 44
5.3 Status Indicating Signal
The pins of status indicating signal as listed below:
Pin#
Pin Name
Description
86
LPG
Status indicating
89
SMI
Sleep Status indicating
56
WAKE_UP
Sleep wake-up pin
1
VTRX
Transceiver power supply signal, indicating the power status of the transceiver
64
VPA
Power supply signal of RF power amplifier
5.3.1 LPG Signal
LPG signal description as listed below:
Status
Mode
idle(unregistered)
600ms high level, 600ms low level
idle(registered)
75ms high level, 3S low level
Voice communication (Call)
low level
Data communicating
75ms high level, 75ms low level
Sleep (sleep mode)
high level
Note:
High level voltage is 1.8V.
5.3.2 SMI Signal
SMI signal description as listed below :
Modes
Description
Sleep Mode
2.5S High; 100ms Low,repeat this
Other Mode
low level
