Publication No. PPC11A-HRM/1
Control and Status Registers 105
5.42
EEPROM DIP Switch 1 Configuration Register 0 (Offset 0x6EA)
This register returns the state of the EEPROM DIP Switch 1 Register 0 when the
PPC11A was last reset. Only six bits are implemented.
Bits
Description
Default
7 & 6
Reserved
00
b
5
Load RCW from EEPROM:
1 = Load RCW from EEPROM
0 = Load RCW from main ROM/FPGA
0
4
RCW selection:
1 = Use RCW 'B'
0 = Use RCW 'A'
0
3
Write protect SSD:
1 = Write protect SSD
0 = Write enable SSD
0
2 to 0
PMC/XMC Site 1 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
5.43
EEPROM DIP Switch 1 Configuration Register 1 (Offset 0x6EB)
This register returns the state of the EEPROM DIP Switch 1 Register 1 when the
PPC11A was last reset. Only six bits are implemented.
Bits
Description
Default
7 & 6
Reserved
00
b
5
nvSRAM write protect:
1 = Write protect nvSRAM
0 = Write enable nvSRAM
0
4
Boot site swap (NOR Flash only):
1 = Swap main/alternate boot areas
0 = Do not swap main/alternate boot areas
0
3
GPIO7 usage:
0 = GPIO7 standard function
1 = Use GPIO7 as duplicate Boot Recovery link input
0
2
GPIO6 usage:
0 = GPIO6 standard function
1 = Use GPIO6 as duplicate Boot Alternate link input
0
1
GPIO5 usage:
0 = GPIO5 standard function
1 = Use GPIO5 as duplicate Flash Password Unlock link input
0
0
GPIO4 usage:
0 = GPIO4 standard function
1 = Reserved for GPIO4 special function
0