VR4102 datasheet(62/701 Pages) NEC

62 / 701 page

CHAPTER 2 PIN FUNCTIONS

2.2 PIN FUNCTION DESCRIPTION

The functional classification of the VR4102 pins is listed below.

Remark # indicates active low.

Figure 2-1. VR4102 Signal Classification

RxD

TxD/CLKSEL2

RTS#/CLKSEL1

DTR#/CLKSEL0

CTS#

DCD#/GPIO15

DSR#

FIRDIN#/SEL

IRDIN

IRDOUT#

DDOUT/GPIO44

DDIN/GPIO45

DRTS#/GPIO46

DCTS#/GPIO47

POWER

RSTSW#

RTCRST#

MPOWER

POWERON

BATTINH/

BATTINT#

AUDIOOUT

AUDIOIN

CLKX1

CLKX2

RTCX1

RTCX2

FIRCLK

LEDOUT#

VDDP

GNDP

CVDD

CGND

DVDD

DGND

AVDD

AGND

PIUVDD

PIUGND

ADD (0:25)

DATA (0:15)

DATA (16:31)/

GPIO (16:31)

LCDRDY

LCDCS#

RD#

WR#

ROMCS (0:3)#

UUCAS#/MRAS3#

ULCAS#/MRAS2#

MRAS (0:1)#

UCAS#

LCAS#

BUSCLK

SHB#

IOR#

IOW#

MEMR#

MEMW#

ZWS#

RSTOUT

MEMCS16#

IOCS16#

IOCHRDY

HLDRQ#

HLDACK#

DBUS32/GPIO48

TPX (0:1)

TPY (0:1)

ADIN (0:2)

GPIO (0:49)

IRING

ILCSENSE

OFFHOOK

MUTE

AFERST#

SDI

SDO

HSPSCLK

TELCON

HC0

HSPMCLK

OPD#

KPORT (0:7)

KSCAN (0:11)/

GPIO (32:43)

VR4102

System bus interface

Dedicated

VDD, GND

RS-232C

interface

IrDA

interface

Debug serial

interface

Initialization

interface

Battery monitor

interface

Keyboard

interface

Audio

interface

Clock

interface

LED

interface

LCD

interface

Memory

interface

ISA bus

interface

Touch panel/

general-purpose A/D interface

HSP modem interface

General-purpose I/O

(including alternate-function

pins and DCD# inputs)

VR4102 Datasheet(PDF) 62 Page - NEC

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