Chapter 9: Using User Flash Memory in MAX II Devices
9–23
Software Support for UFM Block
Figure 9–22. altufm Megafunction Symbol For the I2C Interface Instantiation in the Quartus II
Software
Figure 9–23 shows page 3 of the altufm MegaWizard Plug-In Manager when selecting
2
I C as the interface. On this page, you can choose whether to implement the
read/write mode or read-only mode for the UFM. You also have an option to choose
the memory size for the altufm_i2c megafunction as well as defining the four MSBs of
the slave address (default 1010).
Figure 9–23. Page 3 of the altufm MegaWizard Plug-In Manager (I2C)
1
The UFM block’s internal oscillator is always running when the altufm_i2c
megafunction is instantiated for both read-only and read/write interfaces.
Figure 9–24 shows page 4 of the altufm MegaWizard Plug-In Manager. You can select
the optional write protection and erase operation methods on this page.
© October 2008 Altera Corporation
MAX II Device Handbook
ALTERA [ ALTERA CORPORATION ]
