Table 24. Serial A Header Pin-Out - Intel SE7520AF2 Technical Product Specification

Intel® Server Board SE7520AF2 TPS
Pin
22 GPIOE41
35 GPIOE42
49 GPIOE43
38 GPIOE44/SCI
51 GPIOE45/LED
48 GPO61/SMBSA
45 GPO62/LFCLK
80 GPEXC
79 GPEXD
81 GPEXC2
3.4.10.2 Serial Ports
The Intel® Server Board SE7520AF2 supports two serial ports:
One DB-9 connector located on the back I/O area of the baseboard enabling Serial
Port A
One 9-pin DH-10 header on the server board enables an optional Serial Port B
Serial Port B is an optional port, accessed through a on-board 9-pin internal DH-10 header. A
standard DH-10 to DB9 cable can be used to direct Serial Port A out the back or front of a
chassis.
Pin
1
2
3
4
5
6
7
8
9
3.4.10.3 Floppy Disk Controller
The floppy disk controller (FDC) in the SIO is functionally compatible with floppy disk controllers
in the DP8473 and N844077. All FDC functions are integrated into the SIO including analog
data separator and 16-byte FIFO. The Intel® Server Board SE7520AF2 provides access to the
floppy interface via an SSI-compliant 36-pin connector.
Revision 1.2
Name IO/GPIO
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Output
Output
Output
Input/Output
Output

Table 24. Serial A Header Pin-out

Signal Name
DCD
DSR
RX
RTS
TX
CTS
DTR
RI
GND
Intel order number C77866-003
Intel® Server Board SE7520AF2 Use
Riser Detect 0
MROMB
SIO > ICH5R PME
IMM SCI
BMC (IMM) Card Presence Detect
LAN A Disable
LAN B Disable
Port 80 Register Clock
Serial Data
FRU Register Clock
Serial Port A Header Pin-out
Functional Architecture
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