Input Ports

Port Name

Required

Description

Comments

a0

Yes

Input port that specifies the LSB (bit 0) of the 7-bit device address.

Use the a0 port to vary the device address allocated to the altufm_i2c Intel® FPGA IP.

a1

Yes

Input port that specifies the first bit of the 7-bit device address.

Use the a1 port to vary the device address allocated to the altufm_i2c Intel® FPGA IP.

a2

Yes

Input port that specifies the second bit of the 7-bit device address.

Use the a2 port to vary the device address allocated to the altufm_i2c Intel® FPGA IP.

wp

No

Write protect input port.

If the wp port is set to 1, the memory is write protected and erase and write are disabled.

oscena

No

Signal that enables the internal oscillator.

De-assert the oscena port to disable the oscillator (osc) port when not using the I2C interface protocol.