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1. Getting Started
2. Development Kit Overview
3. Power Up the Development Kit
4. Board Test System (BTS)
5. Development Kit Hardware and Configuration
6. Document Revision History for Intel® Stratix® 10 DX FPGA Development Kit User Guide
A. Development Kit Components
B. Safety and Regulatory Information
C. Compliance and Conformity Information
A.1. Components Overview
A.2. Power, Thermal, and Mechanical Considerations
A.3. Clock Circuits
A.4. Memory Interface
A.5. PCIe Interface
A.6. UPI Interface
A.7. Transceiver Signals: PCIe and UPI Interface
A.8. SlimSAS Connector
A.9. QSFP Network Interface
A.10. I2C Interface
A.11. QSPI Flash Memory
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A.10. I2C Interface
I2C interface supports communication between integrated circuits on a board. It is a simple two-wire bus that consists of a serial data line (SDA) and a serial clock (SCL). The Intel® MAX® 10 and Intel® Stratix® 10 devices use the I2C interface for reading and writing to various components on the board such as programmable clock generators, VID regulators, ADC, and temperature sensors.
Figure 50. I2C Chain
You can use the Intel® MAX® 10 or Intel® Stratix® 10 device as the I2C host to access these devices, change clock frequencies, or get status information of the board such as voltage and temperature readings.
Type | Bus | Address | Device |
---|---|---|---|
Intel® Stratix® 10 / Intel® MAX® 10 I2C Address | I2C1 | 0x31 | EM2140 (U230) |
0x44 | EM2130 (U101) | ||
0x47 | EM2130 (U113) | ||
I2C2 | 0xD8/0x6C | 97ML1252E (U117) | |
0x6A | Si5332A (U7) | ||
0x74 | Si5391A (U9) | ||
0x4E/0x27 | PCA9534 (U232) | ||
0x57 | M24128 (U94) | ||
0x02 | QSFP1 (U50) | ||
0x1E | QSFP2 (U50) | ||
I2C3 | 0x4D/0x9A | MAX6581 (U32) | |
PCIE_EP_3V3_I2C | TBD | PCIe End Point (J9) |