EPM570 Altera, EPM570 Datasheet - Page 29

• Manufacturer Part Number: EPM570
• Description: MAX II Device Family
• Manufacturer: Altera

User Flash
Memory Block
Figure 2–15. UFM Block & Interface Signals
Altera Corporation
December 2004
PROGRAM
OSC_ENA
DRSHFT
ARSHFT
ERASE
DRCLK
ARCLK
DRDin
ARDin
MAX II devices feature a single UFM block, which can be used like a serial
EEPROM for storing non-volatile information up to 8,192 bits. The UFM
block connects to the logic array through the MultiTrack interconnect,
allowing any LE to interface to the UFM block.
UFM block and interface signals. The logic array is used to create
customer interface or protocol logic to interface the UFM block data
outside of the device. The UFM block offers the following features:
■
■
■
■
■
■
Non-volatile storage up to 16-bit wide and 8,192 total bits
Two sectors for partitioned sector erase
Built-in internal oscillator that optionally drives logic array
Program, erase, and busy signals
Auto-increment addressing
Serial interface to logic array with programmable interface
Register
Address
Core Version a.b.c variable
9
UFM Block
16
Data Register
OSC
UFM Sector 1
UFM Sector 0
Program
Control
Erase
16
: _
4
MAX II Device Handbook, Volume 1
RTP_BUSY
BUSY
OSC
DRDout
Figure 2–15
MAX II Architecture
shows the
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