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EPM1270F100I 数据表(PDF) 27 Page - Altera Corporation

部件名 EPM1270F100I
功能描述  MAX II Device Family
Download  86 Pages
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制造商  ALTERA [Altera Corporation]
网页  http://www.altera.com
标志 ALTERA - Altera Corporation

EPM1270F100I 数据表(HTML) 27 Page - Altera Corporation

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Chapter 2: MAX II Architecture
2–19
User Flash Memory Block
© October 2008
Altera Corporation
MAX II Device Handbook
■
Auto-increment addressing
■
Serial interface to logic array with programmable interface
UFM Storage
Each device stores up to 8,192 bits of data in the UFM block. Table 2–3 shows the data
size, sector, and address sizes for the UFM block.
There are 512 locations with 9-bit addressing ranging from 000h to 1FFh. Sector 0
address space is 000h to 0FFh and Sector 1 address space is from 100h to 1FFh. The
data width is up to 16 bits of data. The Quartus II software automatically creates logic
to accommodate smaller read or program data widths. Erasure of the UFM involves
individual sector erasing (that is, one erase of sector 0 and one erase of sector 1 is
required to erase the entire UFM block). Since sector erase is required before a
program or write, having two sectors enables a sector size of data to be left untouched
while the other sector is erased and programmed with new data.
Figure 2–15. UFM Block and Interface Signals
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
Table 2–3. UFM Array Size
Device
Total Bits
Sectors
Address Bits
Data Width
EPM240
EPM570
EPM1270
EPM2210
8,192
2
(4,096 bits/sector)
916


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