µPD720100A
1. PIN INFORMATION
Pin Name
AD (31 : 0)
CBE (3 : 0)0
PAR
FRAME0
IRDY0
TRDY0
STOP0
IDSEL
DEVSEL0
REQ0
GNT0
PERR0
SERR0
INTA0
INTB0
INTC0
PCLK
VBBRST0
CRUN0
PME0
VCCRST0
SMI0
PIN_EN
XT1/SCLK
XT2
DP (5 : 1)
DM (5 : 1)
RSDP (5 : 1)
RSDM (5 : 1)
OCI (5 : 1)
PPON (5 : 1)
LEGC
IRI1
IRI2
IRO1
IRO2
A20S
I/O
Buffer Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I/O
O
I
I/O
O
O
O
O
I
I
I/O
O
I
O
I
I
O
I/O
I/O
O
O
I (I/O)
O (I/O)
I (I/O)
I (I/O)
I (I/O)
O
O
O
5 V PCI I/O
5 V PCI I/O
5 V PCI I/O
5 V PCI I/O
5 V PCI I/O
5 V PCI I/O
5 V PCI I/O
5 V PCI Input
5 V PCI I/O
5 V PCI Output
5 V PCI Input
5 V PCI I/O
5 V PCI N-ch Open Drain
5 V PCI N-ch Open Drain
5 V PCI N-ch Open Drain
5 V PCI N-ch Open Drain
5 V PCI Input
5 V PCI Input
5 V PCI I/O
5 V PCI N-ch Open Drain
5 V tolerant Input
5 V tolerant N-ch Open Drain
5 V tolerant Input
Input
Output
USB high speed D+I/O
USB high speed D−I/O
USB full speed D+ O
USB full speed D− O
5 V tolerant Input
5 V tolerant Output
Input
5 V tolerant Input
5 V tolerant Input
5 V tolerant Output
5 V tolerant Output
5 V tolerant 3-state Output
Active
Level
Low
Low
Low
Low
Low
Low
Low
High
Low
High
High
High
High
High
High
Function
(1/2)
PCI “AD [31 : 0]” signal
PCI “C/BE [3 : 0]” signal
PCI “PAR” signal
PCI “FRAME#” signal
PCI “IRDY#” signal
PCI “TRDY#” signal
PCI “STOP#” signal
PCI “IDSEL” signal
PCI “DEVSEL#” signal
PCI “REQ#” signal
PCI “GNT#” signal
PCI “PERR#” signal
PCI “SERR#” signal
PCI “INTA#” signal
PCI “INTB#” signal
PCI “INTC#” signal
PCI “CLK” signal
Hardware Reset for Chip
PCI “CLKRUN#” signal
PCI “PME#” signal
RESET for Power Management
System management interrupt output
PCI Interface enable
System clock input or Oscillator In
Oscillator Out
USB’s high speed D+ signal
USB’s high speed D− signal
USB’s full speed D+ signal
USB’s full speed D− signal
USB Root Hub Port’s overcurrent status input
USB Root Hub Port’s power supply control output
Legacy support switch
INT input from keyboard
INT input from mouse
INT output from keyboard
INT output from mouse
GateA20 State output
8
Data Sheet S15535EJ2V0DS