5M160ZM100A5N Altera, 5M160ZM100A5N Datasheet - Page 136
5M160ZM100A5N
Manufacturer Part Number
5M160ZM100A5N
Description
ALTERA
Manufacturer
Altera
Series
MAX® Vr
Specifications of 5M160ZM100A5N
Programmable Type
In System Programmable
Delay Time Tpd(1) Max
7.5ns
Voltage Supply - Internal
1.71 V ~ 1.89 V
Number Of Logic Elements/blocks
160
Number Of Macrocells
128
Number Of Gates
-
Number Of I /o
79
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
100-TFBGA
Lead Free Status / Rohs Status
Vendor undefined / RoHS Compliant
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7–34
MAX V Device Handbook
WRSR (Write Status Register)
The block protection bits(BP1 and BP0) are the status bits used to protect certain
sections of the UFM from inadvertent write. The BP1 and BP0 status are updated by
WRSR. During WRSR, only BP1 and BP0 in the status register can be written with valid
information. The rest of the bits in the status register are ignored and not updated.
When both BP1 and BP0 are 0, there is no protection for the UFM. When both BP1 and
BP0 are 1, there is full protection for the UFM. BP0 and BP1 are set to 0 upon power-up.
Table 7–12
the Block Write Protect Bits for Base mode. WRSR is issued through the following
sequence, as shown in
1. nCS is pulled low.
2. Opcode 00000001 is transmitted into the interface.
3. An 8-bit status is transmitted into the interface to update BP1 and BP0 of the status
4. If nCS is pulled high too early (before all the eight bits in Step 2 or Step 3 are
5. nCS is pulled back to high to terminate the transmission.
Figure 7–31. WRSR Operation Sequence
Table 7–12. Block Write Protect Bits for Extended Mode
Table 7–13. Block Write Protect Bits for Base Mode
0 (No protection)
3 (Full protection)
0 (No protection)
3 (Full protection)
register.
transmitted) or too late (the ninth bit or more is transmitted), WRSR is not executed.
Level
Level
lists the Block Write Protect Bits for Extended mode, while
SCK
nCS
SI
SO
Figure
MSB
BP1
BP1
7–31:
Status Register Bits
Status Register Bits
0
0
1
0
1
1
Instruction
2
8-bit
01
3
H
4
High Impedance
5 6 7
BP0
BP0
0
1
0
1
MSB
8
Status Register In
9 10 11 12 13 14 15
Chapter 7: User Flash Memory in MAX V Devices
UFM Array Address
UFM Array Address
000 to 1FF
000 to 0FF
Protected
Protected
January 2011 Altera Corporation
None
None
Software Support for UFM Block
Table 7–13
lists
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