
CHAPTER 1 INTRODUCTION
33
Preliminary User’s Manual U16031EJ2V1UD
Pin Identification
A0 to A25:
Address bus
P72 to P77:
Port 7
ADTRG:
A/D trigger input
PAH0 to PAH9:
Port AH
ANI0 to ANI7:
Analog input
PAL0, PAL1:
Port AL
AVDD:
Analog power supply
PCD0 to PCD3:
Port CD
AVREFM:
Analog reference voltage
PCM0 to PCM5:
Port CM
AVREFP:
Analog reference voltage
PCS0 to PCS7:
Port CS
AVSS:
Analog ground
PCT0 to PCT5, PCT7: Port CT
BCYST:
Bus cycle start timing
PDH0 to PDH15:
Port DH
BUSCLK:
Bus clock output
PLLSEL:
PLL operating mode select
CS0 to CS7:
Chip select
PLLVDD:
PLL power supply
D0 to D31:
Data bus
PLLVSS:
PLL ground
DCK:
Debug clock input
PWM0, PWM1:
Pulse width modulation
DDI:
Debug data input
RD:
Read strobe
DDO:
Debug data output
REFRQ:
Refresh request
DRST:
Debug reset
RESET:
Reset
DMS:
Debug mode
RXD0, RXD1:
Receive data
DMAAK0 to DMAAK3:
DMA acknowledge
SCK0, SCK1:
Serial clock
DMARQ0 to DMARQ3: DMA request
SDCAS:
SDRAM column address strobe
EVDD:
Power supply for external pins
SDCKE:
SDRAM clock enable
EVSS:
Ground for external pins
SDRAS:
SDRAM row address strobe
HLDAK:
Hold acknowledge
SELFREF:
Self-refresh request
HLDRQ:
Hold request
SI0, SI1:
Serial input
INTP10, INTP11, :
Interrupt request from peripherals
SO0, SO1:
Serial output
INTP21 to INTP25,
INTP50 to INTP52,
SSEL0, SSEL1:
Clock generator operating mode
select
INTP65 to INTP67,
TC0 to TC3:
Terminal count signal
INTP100, INTP101,
TCLR10, TCLR11:
Timer clear
INTP110, INTP111,
TCUD10, TCUD11:
Timer control pulse input
INTPC00, INTPC01,
TIC0 to TIC3:
Timer input
INTPC10, INTPC11,
TIUD10, TIUD11:
Timer count pulse input
INTPC20, INTPC21,
TO10, TO11, :
Timer output
INTPC30, INTPC31,
TOC0 to TOC5
INTPD0 to INTPD15
TRCCLK:
Trace clock
INTPL0, INTPL1
TRCDATA0 to:
Trace data output
IORD:
I/O read strobe
TRCDATA3
IOWR:
I/O write strobe
TRCEND:
Trace end status output
IVDD:
Power supply for internal unit
TXD0, TXD1:
Transmit data
IVSS:
Ground for internal unit
UCLK:
USB external clock input
JIT0, JIT1:
SSCG jitter select
UDM:
USB data input & output (
)
LLBE:
Lower byte enable (D0 to D7)
UDP:
USB data input & output (+)
LLDQM:
Lower DQ mask enable (D0 to D7)
ULBE:
Upper byte enable (D16 to D23)
LLWR:
Lower write strobe (D0 to D7)
LUBE:
Lower byte enable (D8 to D15)
ULDQM:
Upper DQ mask enable (D16 to
D23)
LUDQM:
Lower DQ mask enable (D8 to D15) ULWR:
Upper write strobe (D16 to D23)
LUWR:
Lower write strobe (D8 to D15)
UUBE:
Upper byte enable (D24 to D31)
MODE0, MODE1:
Mode
NMI:
Non-maskable interrupt request
UUDQM:
Upper DQ mask enable (D24 to
D31)
OSCVDD:
Clock generator power supply
UUWR:
Upper write strobe (D24 to D31)
OSCVSS:
Clock generator ground
UVDD:
Power supply for USB unit
P10 to P13:
Port 1
WAIT:
Wait
P20 to P25:
Port 2
WE:
Write enable
P50 to P55:
Port 5
WR:
Write strobe output enable
P65 to P67:
Port 6
X1, X2:
Crystal