BU26154MUV_15 Datasheet, PDF (33/90 Pages) Rohm – Monaural Audio CODEC with Touch Panel Interface

BU26154MUV
Datasheet
The Pen Interrupt Detection
Touch detect function outputs the X-plate and Y-plate contact from IRQB pin. Please refer to Description of Registers for
valid or invalid setup of Touch Detection. When X-plate and Y-plate do not contact, H level is outputted from IRQB pin by
internal pull-up resister (typical 10kohm). When X-plate and Y-plate contact, L level is outputted from IRQB pin by touch
plate resistance (about hundreds ohm). Please refer to Description of Registers for IRQB output selection. Touch Detect
schematic diagram is shown below.
BU26154
Typ.50koh
XP
m
YP
IRQB
YN
XN
Interrupt detect circuit
Figure 39
IRQB pin outputs "L" during RESETB "L"(RESET state) period. During this period, please mask interrupt.
RESETB
IRQB
Min: 1ms
Valid
Interrupt timing
Figure 40
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TSZ02201-0V2V0E500110-1-2
26.Oct.2015 Rev.002