ISPPAC-POWR60401TE LATTICE [Lattice Semiconductor], ISPPAC-POWR60401TE Datasheet - Page 26

• Manufacturer Part Number: ISPPAC-POWR60401TE
• Description: In-System Programmable Power Supply Sequencing Controller and Monitor
• Manufacturer: LATTICE [Lattice Semiconductor]

Lattice Semiconductor
ispPAC-POWR604 Data Sheet
Figure 2-16. PAC-Designer Functional Simulation Screen
In-System Programming
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The ispPAC-POWR604 is an in-system programmable device. This is accomplished by integrating all E
CMOS
configuration memory and control logic on-chip. Programming is performed through a 4-wire, IEEE 1149.1 compli-
ant serial JTAG interface. Once a device is programmed, all configuration information is stored on-chip, in non-vol-
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atile E
CMOS memory cells. The specifics of the IEEE 1149.1 serial interface and all ispPAC-POWR604
instructions are described in the JTAG interface section of this data sheet.
User Electronic Signature
The User Electronic Signature (UES), allows the designer to include identification bits or serial numbers inside the
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device, stored in E
CMOS memory. The ispPAC-POWR604 contains 16 UES bits that can be configured by the
user to store unique data such as ID codes, revision numbers or inventory control codes.
Electronic Security
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An Electronic Security Fuse (ESF) bit is provided to prevent unauthorized readout of the E
CMOS bit pattern. Once
programmed, this cell prevents further access to the functional user bits in the device. This cell can only be erased
by reprogramming the device; this way the original configuration cannot be examined or copied once programmed.
Usage of this feature is optional.
Production Programming Support
Once a final configuration is determined, an ASCII format JEDEC file can be created using the PAC-Designer soft-
ware. Devices can then be ordered through the usual supply channels with the user’s specific configuration already
preloaded into the devices. By virtue of its standard interface, compatibility is maintained with existing production
programming equipment, giving customers a wide degree of freedom and flexibility in production planning.
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