VR4102 datasheet(403/701 Pages) NEC

403 / 701 page

CHAPTER 19 PIU (TOUCH PANEL INTERFACE UNIT)

403

19.5 RELATIONSHIPS AMONG TPX, TPY, AND ADIN PINS AND STATES

State

PadState[2:0]

TPX[1:0]

TPY[1:0]

ADIN[2:0]

AUDIOIN

Power off (pen status detection)

Disable

ðð ð ð ð

Low-power standby

Standby

ð ð ð ð

Pen status detection

WaitPenTouch/Interval

ðð ð ð ð

Voltage detection at general-purpose AD0 port

ADPortScan

ð ð ð I

Voltage detection at general-purpose AD1 port

ADPortScan

ð ð I ð

Voltage detection at general-purpose AD2 port

ADPortScan

ð I ð ð

Voltage detection at audio input port

ADPortScan

ð ð ð

TPY1 = H, TPY0 = L, TPX0 = samp (X+)

PadDataScan

ðIHL

ð ð ð ð

TPY1 = L, TPY0 = H, TPX0 = samp (X

ð)

PadDataScan

ðILH

ð ð ð ð

TPX1 = H, TPX0 = L, TPY0 = samp (Y+)

PadDataScan

ðI

ð ð ð ð

TPX1 = L, TPX0 = H, TPY0 = samp (Y

ð)

PadDataScan

ðI

ð ð ð ð

Touch pressure detection (Z)

PadDataScan

ðð ð ð ð

Remarks

: Low level input

: High level input

: Low level output

H : High level output

: A/D converter input

D : Touch interrupt input (via pull-down resistor)

: No touch interrupt input (via pull-down resistor)

ð : Don’t care

VR4102 Datasheet(PDF) 403 Page - NEC

VR4102 Datasheet(HTML) 403 Page - NEC

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL