23
EESX20 and EESX30
Release 1.5 04/2020
2.5 PIN Description for connector CO202
Signal Name
Type I/O
(EESX)
Type
(EESX)
Description
GND
Ground
0 Volts
Ground potential for signals and
power supply.
VMag_G12
Power
1.8 Volts
Power supply for Gigabit-Ports
’
magnetics.
I2C_Clk_G[1..2]
Bidirectional
LVTTL
Clock lines of I2C for Gigabit-Ports 1
and 2. (for SFP-transceiver)
I2C_Da_G[1..2]
Bidirectional
LVTTL
Data lines of I2C for Gigabit-Ports 1
and 2. (for SFP-transceiver)
SD_Dat[0..3]
Bidirectional
LVTTL
Data lines 0..3 of the SD Card
interface.
SD_Clk
Output
LVTTL
Clock line of the SD Card interface.
SD_Cmd
Output
LVTTL
Command line of the SD Card
interface.
SD_/WP
Output
LVTTL
Write protect signal of the SD Card
interface. (low active)
SD_/CD
Output
LVTTL
SD_Dis_VCC
Output
LVTTL
Disable of SD-Card power supply on
Evalboard.
High = disable / Low = enable
Logic_Spare[1..4]
[Bidirectional]
LVTTL
Spare signals for logic on the
Evaluation-Board.
/SFP_Present_EES_G[1..2]
Logical
signal
LVTTL
Signal “SFP present” at Gigabit-Ports
1 and 2. (low active), (for optical
transceivers)
LOS_G[1..2]
Logical
signal
LVTTL
Signal “Loss Of Signal” at Gigabit-
Ports 1 and 2. (high active), (for
optical transceivers)
Config_G[11,12,21,22]
Logical
signal
LVTTL
Selection of a certain System
configuration. Currently without
function.
/Reset_USB_Hub
Input
LVTTL
Reset of USB Hub. (low active)
VCC_Backup
Power
Backup of VCC for Real time clock on
EESX module, Backup-capacitor on
Evaluation-Board.
PMDX0+/-G[1..2]
Bidirectional
analog
100/1000BaseTX:
+-1V diff.
10BaseTX: +-
2,5V diff.
1
st
differential line pair for Gigabit-
TX-Port [1..2]
PMDX1+/-G[1..2]
Bidirectional
analog
100/1000BaseTX:
+-1V diff.
10BaseTX: +-
2,5V diff.
2
nd
differential line pair for Gigabit-
TX-Port [1..2]
PMDX2+/-G[1..2]
Bidirectional
analog
100/1000BaseTX:
+-1V diff.
10BaseTX: +-
2,5V diff.
3
rd
differential line pair for Gigabit-
TX-Port [1..2]
PMDX3+/-G[1..2]
Bidirectional
analog
100/1000BaseTX:
+-1V diff.
10BaseTX: +-
2,5V diff.
4
th
differential line pair for Gigabit-
TXPort [1..2]
SGIN+/-G[1..2]
Input
analog
100BaseFX
1000BaseFX
Differential line pair for Gigabit-FX-
Port [1..2] for data going to the
module.
SGOUT+/-G[1..2]
Input
analog
100BaseFX
1000BaseFX
Differential line pair for Gigabit-FX-
Port [1..2] for data coming from the
module.
Table 2-5: Pin Descriptions (View from module side for I/O type)