HW-FMC-XM105-G Xilinx Inc, HW-FMC-XM105-G Datasheet - Page 28

• Manufacturer Part Number: HW-FMC-XM105-G
• Description: CARD, CONNECTIVITY, FMC XM105
• Manufacturer: Xilinx Inc

Specifications of HW-FMC-XM105-G

• Kit Contents: FMC XM105 Debug Card, Welcome Letter, 4x Mounting Screws, 2x Standoffs
• Features: VITA 57.1 FMC HPC Connector, Power Good LEDs
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 1: XM105
28
15. 2-Kb EEPROM
A ST Microelectronics M24C02 2-Kb serial IIC bus EEPROM component provides a small
amount of non-volatile memory storage on the XM105.
The IIC address of this component is controlled by a combination of the specific board
interface and chip enable connections to the component inputs on the XM105. Signals GA0
and GA1 from the board are connected to the chip enable inputs of the M24C02 component
enables E0 and E1. As shown in
strapping to 3.3V and GND signals, which creates a different E0 and E1 chip enable decode
on the E1 and E0 inputs of the EEPROM.
The IIC memory addressing protocol requires a bus master to initiate communication to a
peripheral device using a start condition followed by a device select code. The device select
code consists of a 4-bit Device Type Identifier and a 3-bit Chip Enable Address (E2, E1, E0).
Bit 0 is used to indicate read/write. The Device Type Identifier for the EEPROM is 1010
binary.
Device Code Select addresses for the EEPROM when the XM105 is connected to boards
defined in
Table 1-16: M24C02 Enable Input Connections
Table 1-17: EEPROM IIC Device Select Code
M24C02 Chip
Device Type
Enable Input
Identifier
Bit 7:4
1010
1010
1010
1010
1010
1010
E0
E1
E2
Table 1-17
Table 1-1, page
Bit 3 Bit 2 Bit 1
E2
Connection
0
0
0
0
0
FMC HPC
shows the generic EEPROM Device Select Code as well as specific
Control
Signal
GA1
GA0
GND
GA0
E1
1
1
0
0
www.xilinx.com
8.
GA1
E0
0
0
1
0
SP601 LPC
Connector
Table
GND
GND
3.3V
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Bit 0 (LSB)
1-16, Xilinx boards provide GA0 and GA1 signal
SP605 LPC
Connector
GND
GND
3.3V
M24C02 Device Select Code
Connected to XM105
Connected to SP601 LPC interface
Connected to SP605 LPC interface
Connected to ML605 LPC interface
Connected to ML605 HPC interface
FMC XM105 Debug Card User Guide
UG537 (v1.2) September 24, 2010
ML605 LPC
Connector
Description
GND
GND
3.3V
ML605 HPC
Connector
GND
GND
GND