9–2
Chapter 9: Using User Flash Memory in MAX II Devices
UFM Array Description
Table 9–2. Memory Organization
Sector
Address Range
1
0
100h
000h
1FFh
0FFh
Using and Accessing UFM Storage
You can use the UFM to store data of different memory sizes and data widths. Even
though the UFM storage width is 16 bits, you can implement different data widths or
a serial interface with the altufm megafunction. Table 9–3 shows the different data
widths available for the three types of interfaces supported in the Quartus II software.
Table 9–3. Data Widths for Logic Array Interfaces
Logic Array Interface
Data Width (Bits)
Interface Type
Serial
2
I C
8
8 or 16
SPI
Serial
Parallel
None
Options of 3 to 16
16
Parallel
Serial
For more details about the logic array interface options in the altufm megafunction,
refer to “Software Support for UFM Block” on page 9–13.
1
The UFM block is accessible through the logic array interface as well as the JTAG
interface. However, the UFM logic array interface does not have access to the CFM
block.
MAX II Device Handbook
© October 2008 Altera Corporation
ALTERA [ ALTERA CORPORATION ]
