7–2
Chapter 7: User Flash Memory in MAX V Devices
UFM Array Description
Memory Organization Map
Table 7–2 lists the memory organization for the MAX V UFM block. There are 512
locations with 9 bits addressing a range of 000hto 1FFh. Each location stores 16-bit
wide data. The MSB of the address register indicates the sector in operation.
Table 7–2. 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 7–3 lists the different data
widths available for the three types of interfaces supported in the Quartus II software,
as well as no interface.
Table 7–3. Data Widths for Logic Array Interfaces
Logic Array Interfaces
Data Widths (Bits)
Interface Types
Serial
I2C
SPI
8
8 or 16
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 7–13.
1
The UFM block is accessible through the logic array interface and the JTAG interface.
However, the UFM logic array interface does not have access to the configuration
flash memory (CFM) block.
MAX V Device Handbook
January 2011 Altera Corporation
ALTERA [ ALTERA CORPORATION ]
