Intel SE7501WV2 User Manual

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Functional Architecture 
Intel® Server Board SE7501WV2 TPS 
  
Revision 
1.0 
 
Intel reference number C25653-001 
32
3.2.4.5 APIC 
The ICH3-S integrates an APIC that is used to distribute 24 interrupts. 
3.2.4.6 Power 
Management 
One of the embedded functions of the ICH3-S is a power management controller. The 
SE7501WV2 server board uses this to implement ACPI-compliant power management features. 
The SE7501WV2 supports sleep states S0, S1, S4, and S5. 
 
3.3 Super 
I/O 
The National Semiconductor* PC87417 Super I/O device contains all of the necessary circuitry 
to control two serial ports, one parallel port, one floppy disk, and one PS/2-compatible keyboard 
and mouse. The SE7501WV2 server board supports the following features: 
• 
GPIOs 
• 
Two serial ports 
• 
Floppy 
• 
Keyboard and mouse through one PS/2 connector 
• 
Wake up control 
3.3.1 GPIOs 
The National Semiconductor* PC87417 Super I/O provides nine general-purpose input/output 
pins that the SE7501WV2 server board utilizes. The following table identifies the pin and the 
signal name used in the schematic: 
Table 6. Super I/O GPIO Usage Table 
Pin 
Name 
IO/GPIO 
Intel
®
 Server Board 
SE7501WV2 Use 
124 GPIO00/CLKRUN_L 
I/O 
TP 
125 GPIO01/KBCLK 
I/O 
KB_CLK 
126 GPIO02/KBDAT 
I/O 
KB_DAT 
127 GPIO03/MCLK 
I/O 
MS_CLK 
128 GPIO04/MDAT 
I/O 
MS_DAT 
9 GPIO05/XRDY 
I/O 
TP 
10 GPIO06/XIRQ 
I/O 
BMC_SYSIRQ 
13 GPIO07/HFCKOUT 
I/O 
SIO_CLK_40M_BMC 
1 GPIOE10/XA11 
I/O,I(E)1 
XBUS_A<11> 
2 GPIOE11/XA10 
I/O,I(E)1 
XBUS_A<10> 
3 GPIOE12/XA9 
I/O,I(E)1 
XBUS_A<9> 
4 GPIOE13/XA8 
I/O,I(E)1 
XBUS_A<8> 
5 GPIOE14/XA7 
I/O,I(E)1 
XBUS_A<7> 
6 GPIOE15/XA6 
I/O,I(E)1 
XBUS_A<6> 
7 GPIOE16/XA5 
I/O,I(E)1 
XBUS_A<5>