Chapter 2
Table 2-1. Major Component Descriptions and Functions (Continued)
RS-232 Transceiver
(U20)
RS-232 Transceiver
(U21)
Solid State Drive
[SSD] - SATA (U22)
- on bottom side [see
Figure
2-4])
Hardware Monitor
(U27) [on bottom
side; see
Figure
2-4]
SPI Flash (U28)
HDMI Level Shifter
(U48)
EEPROM, DDR3
(U66 - on bottom
side [see
Figure
2-4])
EEPROM,
PCIe-to-PCI Bridge
(U67 - on bottom
side [see
Figure
2-4])
Transformer -
Gigabit Ethernet
(T1)
Transformer -
Gigabit Ethernet
(T2)
12
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TR3253EIRSMR
Instruments
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TR3253EIRSMR
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Winbond
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Microelectr
onics
Atmel
AT24C02C
Atmel
AT24C02C
Wurth
7490200110
Elektronik
Wurth
7490200110
Elektronik
Reference Manual
Product Overview
Transceiver for
Transmits and
Serial 1 RS-232
receives RS-232
signals
signals for
COM1
Transceiver for
Transmits and
Serial 2 RS-232
receives RS-232
signals
signals for
COM2
Industrial-grade
Provides solid
soldered solid-state
state storage
storage module
through SATA
port 2
Remote Voltage and
Provides system
Temperature
thermal
Monitor and Fan
protection
Controller
Serial Peripheral
Stores BIOS in
Interface Flash
Flash Memory
Memory chip (for
firmware)
HDMI level-shift IC
Converts HDMI
for HDMI video
differential input
from the PCH to
TMDS
differential
output for the
HDMI interface
Two-Wire Serial
Provides storage
EEPROM for SPD
for System
(Serial Presence
Memory
Detect)
configuration
data
Two-Wire Serial
Stores PCIe-to-
EEPROM for PCIe-
PCI bridge
to-PCI Bridge
configuration
data
Gigabit Ethernet
Provides
Magnetics
electrical
isolation for
Gigabit Ethernet
PHY transceiver
(GLAN1)
Gigabit Ethernet
Provides
Magnetics
electrical
isolation for
Gigabit Ethernet
controller
(GLAN2)
CoreModule 920
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