Table 3-30: 0x284: device protection register, Table 3-31: 0x285: reset status register, Table 3-30 – Kontron COMe-cP2020 User Manual
Page 54: Table 3-31, Table 3-32
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COMe-P2020 User Guide
54
Table 3-30:
0x284: Device Protection Register
ACTION
D7
D6
D5
D4
D3
D2
D1
D0
READ
0
0
0
NFWP
SPDWP
0
EEWP
BFWP
WRITE
NU
NU
NU
NFWP
SPDWP
NU
EEWP
BFWP
POWER UP
0
0
0
0
1
0
1
0
BITFIELD
DESCRIPTION
[D0]
BFWP
SPI Boot Flash#1/2 write protection:
'0' = Boot Flash not write protected (forces PLD output to logic HIGH)
'1' = Boot Flash write protected PLD drives (forces PLD output to HIGH-Z)
[D1]
EEWP
System data EEPROM write protection:
'0' = EEPROM not write protected (forces PLD output to logic LOW)
'1' = EEPROM write protected (forces PLD output to HIGH-Z)
[D3]
SPDWP
SPD write protection:
'0' = SPD not write protected (forces PLD output to HIGH-Z)
'1' = SPD write protected (forces PLD output to logic HIGH)
[D4]
NFWP
NOR Flash write protection:
'0' = NOR Flash not write protected (forces PLD output to logic HIGH)
'1' = NOR Flash write protected (forces PLD output to HIGH-Z)
Table 3-31:
0x285: Reset Status Register
ACTION
D7
D6
D5
D4
D3
D2
D1
D0
READ
PORS
0
0
0
0
0
0
WTRS
WRITE
w1c
NU
NU
NU
NU
NU
NU
w1c
POWER UP
1
0
0
0
0
0
0
0
BITFIELD
DESCRIPTION
[D0]
WTRS
Watchdog timer reset status, writing '1' clears the register:
'0' = System reset not generated by Watchdog timer
'1' = System reset generated by Watchdog timer
[D7]
PORS
Power-On reset status, writing '1' clears the register:
'0' = System reset generated by sof tware (warm reset)
'1' = System reset generated by Power-On (cold reset)
Table 3-32:
0x286: Board Interrupt Configuration Register (not implemented!)
ACTION
D7
D6
D5
D4
D3
D2
D1
D0
READ
0
0
0
0
0
0
WICF
WRITE
NU
NU
NU
NU
NU
NU
WICF
POWER UP
0
0
0
0
0
0
00
BITFIELD
DESCRIPTION
[D0-D1]
WICF
Watchdog interrupt conf iguration:
"00" = Watchdog is disabled
"01" = CPU IRQ[9]
"10" = CPU IRQ[10]
"11" = Reserved