Hardware Reference Manual
Hardware and Firmware Programmable Devices
GFK-3022E
September 2021
Hardware and Firmware Programmable Devices
47
Section 6:
Hardware and Firmware Programmable
Devices
This chapter describes the hardware and firmware programmable devices of the CEC09 carrier
board and the bCOM6L18 module.
6.1
SMBUS Devices
Table 6-1
SMBus Devices
Device
Address
Function
Clock Buffer 8x
1101 110xb [DCh]
PCIe clock
Clock Buffer 4x
1101 110xb [DCh]
PCIe clock
PCA9548A
1110 001xb [E2h]
SMBus switch
(to avoid address conflicts from add-in boards)
Fan Controller
0101 110xb [5Ch]
Fan controller includes thermal sensors
Port Expander
0100 000xb [40h]
SMBus port expander
Table 6-2
PC Bus Device
Device
Address
Function
24C512
1010 000x [A0h]
Factory EEPROM of bCOM6L18
24C64
1010 111x [AEh]
Factory EEPROM of CEC09
6.2
Ethernet
The Ethernet controllers provide internal EEPROMs, which contain the MAC address, as well as
their configuration.
6.3
PCIe Ports
The PCIe ports are provided by the COMe module. The PCIe allocation is provided in the
following table.
