ITU keyboard is visible when the slider is moved upwards. ITU keypads are located on the system/RF module.
System/RF module includes also side keys (volume keys, 2-position capture key and keylock switch) and MM
dome switches. MM keyboard is visible when the slider is moved downwards. S60 keys are located on the UI/
slide module.
Table 10 IO expander I (located on the engine PWB)
Expander pins KP-Y0 KP-Y1 KP-Y2 KP-Y3
Lines COL0 COL1 COL2 COL3
KP-X0 ROW0 1 6 2 Vol Up
KP-X1 ROW1 5 9 # Vol Down
KP-X2 ROW2 3 0 8
Capture
half
KP-X3 ROW3 * 7 4 Capture full
KP-X4 ROW4 MM1 MM2 MM3 MM4
KP-X5 ROW5 Keylock
Table 11 IO expander II (located at the S60 flex)
Expander pins KP-Y0 KP-Y1 KP-Y2 KP-Y3 KP-Y4
Lines COL0 COL1 COL2 COL3 COL4
KP-X0 ROW0 RSK
KP-X1 ROW1 M-key LSK
KP-X2 ROW2
KP-X3 ROW3 Select Clear
KP-X4 ROW4 Up Send End Down
KP-X5 ROW5 Right Left
Illumination
LED driver solution
Three LP5521 ‘NJOY LED drivers are used to supply power for different light segments. Each LED driver has
three independently programmable constant current outputs (R, G and B). LED drivers are controlled by
Rapido via ISA_I2C bus and they use 32kHz external clock from Vilma.
RM-484; RM-485; RM-486
System Module and User Interface
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