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CPLD: Version and ID Registers
10007175-02 KAT4000 User’s Manual
7-3
PID1, PID0: PID Select
00 KAT4000
01 Reserved
10 Reserved
11 Reserved
R: Reserved
ECS: Ethernet Core Switch
1 Ethernet Core Switch is installed
0 Ethernet Core Switch is not installed
PCIE: PCI Express Switch
1 PCI Express Switch is installed
0 PCI Express Switch is not installed
Hardware Version Register (HVR)
The read-only Hardware Version register indicates artwork revision and notifies of any
other change to the hardware. The values of these bits are defined by strapping resistors.
Register 7-2: Hardware Version Register (HVR) at 0xfc40,0004
R: Reserved
HVR1, HVR0: Hardware Version Register
This is hard-coded in the PLD and changes with every major PCB version. Version starts at
Ox00.
PLD Version Register (PVR)
The read-only PLD Version register provides a hard-coded tracking number that changes
with each CPLD code release.
Register 7-3: PLD Version Register (PVR) at 0xfc40,0008
PCV7-0: PLD Code Version
This is hard-coded in the PLD and changes with every major code version. Version starts at
Ox00.
76543210
reserved HVR1 HVR0
76543210
PCV7 PCV6 PCV5 PCV4 PCV3 PCV2 PCV1 PCV0