Altera MAX 10 FPGA Bedienungsanleitung Seite 21

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Related Information
JTAG Instruction Availability on page 2-17
Configuration Flash Memory Permissions on page 2-18
.pof Generation through Convert Programming Files on page 3-6
JTAG Secure Mode Instructions
Table 2-12: JTAG Secure Mode Instructions for MAX 10 Devices
JTAG Instruction Instruction Code Description
LOCK 10 0000 0010
Activates the JTAG secure mode.
Blocks access from both external pins and core to
JTAG.
UNLOCK 10 0000 1000 Deactivates the JTAG secure mode.
Verify Protect
Verify Protect is a security feature to enhance CFM security. When you enable the Verify Protect, only
program and erase operation are allowed on the CFM. This capability protects the CFM contents from
being copied.
You can turn on the Verify Protect feature by enabling the Verify Protect in the Quartus II programmer.
Related Information
Configuration Flash Memory Permissions on page 2-18
JTAG Instruction Availability
Table 2-13: JTAG Instruction Availability Based on JTAG Secure Mode and Encryption Settings
JTAG Secure Mode Encryption Description
Disabled
Disabled All JTAG Instructions enabled
Enabled
All JTAG Instructions are enabled except:
CONFIGURE
Enabled
Disabled All JTAG Instructions are disabled except:
SAMPLE/PRELOAD
BYPASS
EXTEST
IDCODE
UNLOCK
LOCK
Enabled
Related Information
JTAG Secure Mode on page 2-16
UG-M10CONFIG
2015.05.04
JTAG Secure Mode Instructions
2-17
MAX 10 FPGA Configuration Schemes and Features
Altera Corporation
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