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Table 19: Memory Organization
Address RangeSector
1FFh100h1
0FFh000h0
Using and Accessing UFM Storage
Use the UFM to store data of different memory sizes and data widths. The UFM storage width is 16 bits,
however, you can implement different data widths or a serial interface using the ALTUFM IP core.
Table 20: Data Widths for Logic Array Interfaces
Interface TypeData Width (Bits)Logic Array Interface
Serial8 or 16SPI
ParallelOptions of 3 to 16Parallel
Serial8I2C
Serial16None
Figure 7: MAX II UFM Block Diagram and Interface Signals Block Diagram
OSC 4
Program
Erase
Control
UFM Sector 1
UFM Sector 0
:
_
Address
Register
PROGRAM
ERASE
OSC_ENA
RTP_BUSY
BUSY
OSC
Data Register
UFM Block
DRDin
DRDout
ARCLK
ARSHFT
ARDin
DRCLK
DRSHFT
16 16
9
UFM Operating Modes
There are three UFM block modes:
Read/stream read
Program (write)
Altera Corporation
Altera User Flash Memory (ALTUFM) IP Core User Guide
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23
Using and Accessing UFM Storage
UG-040105
2014.08.18
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