Table 6. Gpio On The Intel® Server Board Se7520Bd2 - Intel SE7520BD2 Technical Product Specification

Product Overview
All unused GPI pins must be pulled high or low, so that they are at a predefined level and do not
cause undue side effects.
Additional notes:
•
GPIO 0:15 sticky bits on input, level triggered, 61 usec min time for latch
•
GPI's only: 0:15, 40-47 (note 42-47 unimplemented)
•
GPO's only: 16-23, 48-55 (note 49-55 unimplemented)
•
GPI or GPO: 24-39 (note 35-39 unimplemented, GPIO[33] is changed to S-ATA LED
and this GPIO is NOT available)
•
GPIO resume power well: 8-15, 24-25, 27-28
•
GPIO core power well: 0-7, 16-23, 32-34, 40-41, 48
Table 6. GPIO on the Intel® Server Board SE7520BD2
ICH5-R Signal
INTRUDER DETECT
GPI0/REQA
GPI1/REQB/REQ5#
GPI6/AGPBUSY#
GPI7
GPI8
GPI9/OC[4]#
GPI10/OC[5]#
GPI11/SMBALERT#
GPI12
GPI13
GPI14/OC[6]#
GPI15/OC[7]#
GPO16/GNTA#
GPO17/GNTB#/GNT[5]#
GPO18/STP_PCI#
GPO19/SLP_S1#
GPO20/STP_CPU#
GPO21/C3_STAT#
GPO22/CPUPERF#
GPO23/SSMUXSEL#
GPIO24/CLKRUN#
GPIO25
GPIO27
GPIO28
GPIO32
GPIO34
GPI40/REQ4#
GPI41/LDRQ1#
22
Intel® Server Board SE7520BD2 Technical Product Specification
Type Pin PWR Well
Input Y12 Core
Input A5 Core
Input E7 Core
Input R5 Core
Input U3 Core
Input Y2 Resume
Input B14 Resume
Input A14 Resume
Input AC3 Resume
Input W4 Resume
Input W5 Resume
Input D13 Resume
Input C13 Resume
Output E8 Core
Output B4 Core
Output U21 Core
Output T20 Core
Output U22 Core
Output R1 Core
Output U20 Core
Output F22 Core
I/O AC1 Resume
I/O W3 Resume
I/O V3 Resume
I/O W2 Resume
I/O T1 Core
I/O F21 Core
Input C6 Core
Input R2 Core
Tolerant Intel® Server Board SE7520BD2 Usage
3.3V TP
5V Board SKU 0
5V Board SKU 1
5V Bios Recover Boot
5V MCH PME
3.3V WAKE#/PCI PME#
Reserved for USB OC4 (3 in back, 2 in
3.3V front)
3.3V PERR# for PCI 32bit/33Mhz slot
3.3V Board ID 0
3.3V SIO SMI
3.3V BMC IRQ SMI
3.3V SIO > ICH5-R PME
3.3V Password clear
3.3V TP
3.3V TP
3.3V TP
3.3V PWRGD Toggle (for PLL Select) TP
3.3V Video Disable
3.3V SCSI Disable
3.3V TP
Legend connector
3.3V POST complete Indicator
3.3V Board ID 1
3.3V Board ID 2
3.3V TP
3.3V SM Module Present
3.3V Board SKU 2
3.3V IDE Primary Cable Sense
3.3V CMOS Clear
3.3V Emergency Bank Select
Revision 1.3