Nokia 9000i Service Manual page 136

RAE/RAK–1N
PDA Hardware
Note 2. MICCON = Hands–free microfone connector on PDA module
Note 3. SC = System Connector
Table 15. External Signals and Connections, Outputs
Signal Name
BACKLIGHTO Backlights on/off (control)
KEYDO(2:0) Keymatrix drive lines
KEYSO(1:0) Keymatrix sense lines
LCDDO(3:0) PDA LCD Data
DISPONO PDA LCD Display on control signal
FPO PDA LCD Frame Pulse
PCLKO PDA LCD Pixel Clock
LPO PDA LCD Line Pulse
PHFMICNO Negative Hands Free MIC input
PHFMICPO Positive Hands Free MIC input
COL(3:0)O Lines for keypad write
UIF(3:0)O Lines for keypad read and LCD–controller data
UIF4O Line for keypad read and LCD–controller read/write strobe
UIF5O Line for keypad read and LCD–controller data/insruction register
selection
UIF6O LCD–controller enable srobe
MBUSO Serial bidirectional data and control between the handphone and
accesseries
EXTMICO External audio input from accessories or handsfree microphone.
Multiplexed with junction box connection indication. 16.8k pull
down in HP
EXTEARO External audio output to accessories or handsfree speaker.
100kW pull–down in HP to turn on the junction box.
Page 6 – 24
Signal description
After Sales
Technical Documentation
To (1,2,3)
LCDMCON /
BACKLIGH-
TO
LCMCON /
KEYD(2:0)
LCMCON /
KEYS(1:0)
LCMCON /
LCDD(3:0)
LCMCON /
DISPON
LCMCON /
FP
LCMCON /
PCLK
LCMCON /
LP
MICCON / 1
MICCON / 2
LCDMCON /
LCDMCOL(
3:0)
LCDMCON /
LCDMUIF(3:
0)
LCDMCON /
LCDMUIF4
LCDMCON /
LCDMUIF5
LCDMCON /
LCDMUIF6
SC / SYSM-
BUS
SC / SY-
SEXTMIC
SC / SY-
SEXTEAR
Original, 08/96