Intel SE7505VB2 Product Specification - Page 29

GPIOs, Serial Ports, Serial - schematic

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Intel® Server Board SE7505VB2 Functional Architecture 3.3.1 GPIOs The sIO provides a number of general-purpose input/output pins that the baseboard 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 Pin No. GPIO12 (Pin 126) GPIO13 (Pin 125) GPIO15 (Pin 123) GPIO17 (Pin 121) GPIO20 (Pin 119) Used as CLRPAS# FanSlct1# FanSlct2# MAG_jmpr RECRYMD# GPI/GPO / Function Function Select GPI CR2A=1 & CR2A=1 & LD7 [F0h]=1 GPO CR2A=1 & CR2A=1 & LD7 [F0h]=0 GPO GPI CR2A=1 & LD7 [F0h]=1 GPI CR2A=1 & LD8[F0h]=1 GPIO25 Flash_EN# (Pin 88) GPO CR2B=1 & LD8[F0h]=0 GPIO26 (Pin 87) GPIO35 (Pin 64) Btn_dsabl# Blink_LED GPO CR2B=1 & LD8[F0h]=0 SUSLED CR29h=0 Data Description 0: Clear Password LD7[F1h] 1: Normal LD7[F1h] LD7[F1h] LD8[F1h] LD8[F1h] LD8[F1h] 0: Factory mode 1: normal 0: Recovery mode 1:Normal 0: Flash ROM Write En 1: normal 0: Power button Disabled 1: normal 3.3.2 Serial Ports The board provides two serial ports, an external serial port, and an internal serial header. The following sections provide details on the use of the serial ports. 3.3.2.1 Serial A Serial A is a standard DB9 interface located at the rear I/O panel of the server board, to the left of the video connector below the parallel port connector. Serial A is designated by as "Serial A" on the silkscreen. The reference designator is J8A1. 3.3.2.2 Serial B Serial B is an optional port, accessed through a 9-pin internal header (J1J2). A standard DH-10 to DB9 cable can be used to direct serial B to an external connector on any given chassis. The serial B interface follows the standard RS232 pinout. The baseboard has a "Serial B" silkscreen label next to the connector and is located below the floppy connector. Revision 1.2 29 Intel part number C32194-002

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Intel® Server Board SE7505VB2
Functional Architecture
3.3.1
GPIOs
The sIO provides a number of general-purpose input/output pins that the baseboard 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
Pin No.
Used as
GPI/GPO
/
Function
Function Select
Data
Description
GPIO12
(Pin 126)
CLRPAS#
GPI
CR2A<7>=1 & CR2A<4>=1 & LD7
[F0h]<2>=1
LD7[F1h]<2>
0: Clear Password
1: Normal
GPIO13
(Pin 125)
FanSlct1#
GPO
CR2A<7>=1 & CR2A<3>=1 & LD7
[F0h]<3>=0
LD7[F1h]<3>
GPIO15
(Pin 123)
FanSlct2#
GPO
GPIO17
(Pin 121)
MAG_jmpr
GPI
CR2A<7>=1 & LD7 [F0h]<7>=1
LD7[F1h]<7>
0: Factory mode
1: normal
GPIO20
(Pin 119)
RECRYMD#
GPI
CR2A<0>=1 & LD8[F0h]<0>=1
LD8[F1h]<0>
0: Recovery mode
1:Normal
GPIO25
(Pin 88)
Flash_EN#
GPO
CR2B<3>=1 & LD8[F0h]<5>=0
LD8[F1h]<5>
0: Flash ROM
Write En
1: normal
GPIO26
(Pin 87)
Btn_dsabl#
GPO
CR2B<2>=1 & LD8[F0h]<6>=0
LD8[F1h]<6>
0: Power button
Disabled
1: normal
GPIO35
(Pin 64)
Blink_LED
SUSLED
CR29h<7>=0
3.3.2
Serial Ports
The board provides two serial ports, an external serial port, and an internal serial header. The
following sections provide details on the use of the serial ports.
3.3.2.1
Serial A
Serial A is a standard DB9
interface located at the rear I/O panel of the server board, to the left
of the video connector below the parallel port connector. Serial A is designated by as “Serial A”
on the silkscreen. The reference designator is J8A1.
3.3.2.2
Serial B
Serial B is an optional port, accessed through a 9-pin internal header (J1J2). A standard DH-10
to DB9 cable can be used to direct serial B to an external connector on any given chassis. The
serial B interface follows the standard RS232 pinout. The baseboard has a “Serial B” silkscreen
label next to the connector and is located below the floppy connector.
Revision 1.2
Intel part number C32194-002
29