Publication No. PPC11A-HRM/1
Control and Status Registers 107
5.48
Flash Password Registers (Offsets 0x6F0 to 0x6F7)
This block of 8 bytes provides the NOR Flash password to host software. Byte 0 is at
offset 0x6F0 and byte 7 is at offset 0x6F7.
5.49
EEPROM DIP Switch 2 Configuration Register 1 (Offset 0x6FA)
This register returns the state of the EEPROM DIP Switch 2 Register 0 when the
PPC11A was last reset. Only 6 bits are implemented.
Bits
Description
Default
7 to 4
Reserved
0x0
3
VMEbus path enable:
1 = Enable second (outbound) VMEbus path
0 = Disable second (outbound) VMEbus path
This is not currently implemented
0
2 to 0
PMC/XMC Site 2 Geographical Address:
101
b
= VIO is 5V
Others = VIO is 3V3
For XMC deployment, this is connected directly to the XMC;
for PMC deployment, this controls the PMC VIO voltage
5.50
EEPROM DIP Switch 2 Configuration Register 2 (Offset 0x6FB)
EEPROM DIP Switch 2 Register 1 is not implemented.
5.51
Watchdog Registers
5.51.1 Watchdog Configuration Register (Offset 0x700)
This register is locked while the watchdog is running (bit 0 of the
Bits
Description
Default
7 & 6
Reserved
00
b
5 & 4
Interlock configuration:
11
b
= Reserved
10
b
= Once enabled, the Watchdog can never be disabled
01
b
= Once enabled, the Watchdog can only be disabled when GPIO4 is high
00
b
= The Watchdog can be disabled without restriction
01
b
3 & 2
Reserved
00
b
1
Warning GDISCRETE1 assertion:
1 = Warning assertion asserts GDISCRETE1
0 = Warning assertion does not assert GDISCRETE1
1
0
Reserved
0
b