Nokia 232, 239 服务手册
After Sales
Technical Documentation
Handsfree Desktop Charger CHH–7
Original, 11/94
Page 20
Table 27. Port D Signals of the Processor:
PORT D
NOTES
PD0: PHONE MIC
(output)
analogue Switch, ”1”: Phone mic switched on
PD1: ACC MIC
(output)
analogue Switch, ”1”: Accessory mic switched on
PD2: HF MIC
(output)
analogue Switch, ”1”: HF mic switched on
PD3: PHONE EAR
(output)
analogue Switch, ”1”: Phone ear switched on
PD4: ACC EAR
(output)
analogue Switch, ”1”: Accessory ear switched on
PD5: HF SPK
(output)
analogue Switch, ”1”: HF speaker switched on
PD6: Unused
(output)
Not Used
PD7: Unused
(output)
Not Used
Table 28. Port F Signals of the Processor:
PORT F
NOTES
PF0: Unused
(input)
Not Used
PF1: Unused
(input)
Not Used
PF2: Unused
(input)
Not Used
PF3: Unused
(input)
Not Used
PF4: Unused
(input)
Not Used
PF5: Unused
(input)
Not Used
PF6: Unused
(input)
Not Used
PF7: Unused
(input)
Not Used
Table 29. Processor A/D Inputs:
NAME
NOTES
AN0: VBATL
Battery voltage
AN1: VBATH
High resolution battery voltage
AN2: PHOCURDET
Phone current detect
AN3: BATTEMP
Battery temperature
AN4: BATTSZ
Battery size
AN5: CHRGVOLT
Charger voltage detection
AN6: PWR
Phone connection detection
AN7: LIREF
Not Used