TECHNICAL DESCRIPTION
Issue 1 Section 4 PMCD030901C8
Revision 0 ā 24 ā Service Manual
4.8.8. Accessory Control
The telephone can detect accessories connected to the I/O connector by measuring the ADC value of ADIN4 (ACCY_ID) on
SYREN. It can then communicate with the detected peripheral and control set ACC_PWR where required, as detailed in the
following table.
Inputs (Pin No.) Outputs
PeripheralsnACC_SENSE ACCY_ID EXT_PWR ACC_PWR
(7) (9) (13) (9)
High 1023 Low Low none
High 1023 High Low AC Adaptor / DC Adaptor
Low 1023 High or Low High Factory Test Jig
Low 714-934 High or Low High GPS Module
Low 502-684 High or Low High not used
Low 342-480 High or Low High not used
Low 208-299 High or Low High not used
Low 123-180 Low High Charging Data Cable
Low 123-180 High High Charging Data Cable + AC / DC Adaptor
Low 60-90 High or Low High not used
Low 24-35 High or Low High not used
Low 0 High or Low High not used