
CHAPTER 2 PIN FUNCTIONS
User’s Manual U14579EJ2V0UM
48
Pin Identification
ACLINKRST#:
AC-Link Reset
DAAVREF:
Analog Reference Voltage for
AD(31:0):
Address/Data Bus
D/A Converter
ADAGND:
A/D Converter Analog Ground
DEVSEL#:
Device Select
ADAVDD:
A/D Converter Analog VDD
DN1, DN2:
Data Negative
ADAVREFM:
Analog Reference Minus
DP1, DP2:
Data Positive
Voltage for A/D Converter
FRAME#:
Frame
ADAVREFP:
Analog Reference Plus
GND2:
Ground for I/O Buffer
Voltage for A/D Converter
GND3:
Ground for Internal Circuit
ADDGND:
Digital Ground for A/D
GNT#:
Grant
Converter
GPIO(20:0):
General Purpose Input/Output
ADDVDD:
Digital VDD for A/D Converter
IDSEL:
Identifier Select
ADIN:
A/D Converter General Input
INPACK1#, INPACK2#:
ADX:
A/D Converter Input
Input Acknowledge
for X Axis Port
IORD1#, IORD2#:
I/O Read
ADY:
A/D Converter Input
IOWR1#, IOWR2#:
I/O Write
for Y Axis Port
IRDY#:
Initiator Ready
AUDIOIN:
Audio Input
KPORT(7:0):
Key Port
AUDIOOUT:
Audio Output
KSCAN(11:0):
Key Scan
BCLK:
Bit Clock
OCI1, OCI2:
Over Current Indicator
BVD11#, BVD12#,
OE1#, OE2#:
Output Enable
BVD21#, BVD22#:
Battery Voltage Detect
PAR:
Parity
C1A(25:0):
Card Slot 1 Address
PCIRST#:
PCI Reset
C1D(15:0):
Card Slot 1 Data
PCLK:
PCI Clock
C2A(25:0):
Card Slot 2 Address
PERR#:
Parity Error
C2D(15:0):
Card Slot 2 Data
PPON1, PPON2:
Port Power On
CBE(3:0)#:
Chipset Byte Enable
PS2CLK1, PS2CLK2: PS/2 Clock
CD11#, CD12#,
PS2DATA1, PS2DATA2:
CD21#, CD22#:
Card Detect
PS/2 Data
CE11#, CE12#,
PWCCLK:
Power Control Clock
CE21#, CE22#:
Card Enable
PWCDATA:
Power Control Data
CLK48M :
48 MHz Clock Output
PWCLATCH:
Power Control Latch
CLK48MX1, CLK48MX2:
RCVBE:
Receiver Buffer Enable
48 MHz Crystal Clock Input
READY1, READY2:
Ready
CLKRUN#:
Clock Run
REG1#, REG2#:
Attribute Memory Select
DAAGND:
Analog Ground for
REQ#:
Request
D/A Converter
RESET1, RESET2:
Reset
DAAVDD:
Analog VDD for
SCLK:
Suspend Less Clock
D/A Converter
SDATAIN:
Serial Data Input
SDATAOUT:
Serial Data Output
Remark
# indicates active low.