3 i/o address map, I/o address map – Kontron COMe-bP5020 User Manual
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User Guide
COMe-bP5020
3.3 I/O Address Map
For the COMe-bP5020, the register address is composed of the base address of the Onboard Logic indicated in the virtual mem-
ory map (see Table 14) and the respective address offset indicated in the I/O address map (Table 15):
register address = 0xFF00_0000 base + address offset.
Table 15: I/O Address Map
ADDRESS OFFSET
DEVICE
ACRONYM
0x003
GPIO Direction Register 0
GPDIR0
0x004
GPIO Direction Register 1
GPDIR1
0x005
GPIO Data Register 0
GPDAT0
0x006
GPIO Data Register 1
GPDAT1
0x280
Status Register 0
STAT0
0x284
Device Protection Register
DPROT
0x285
Reset Status Register
RSTAT
0x288
Board ID High Byte Register
BIDH
0x289
Board and PLD Revision Register
BREV
0x28C
Watchdog Timer Control Register
WTIM
0x28D
Board ID Low Byte Register
BIDL
0x374
Carrier Interrupt Mode 1
CIM1
0x375
Carrier Interrupt Mode 2
CIM2
0x376
Board Interrupt Pending Register 1
BIPR1
0x377
Board Interrupt Pending Register 2
BIPR2
0x378
Board Interrupt Pending Register 3
BIPR3
0x37A
Board Interrupt Enable 1
BIE1
0x37B
Board Interrupt Enable 2
BIE2
0x380
Interrupt Multiplexer 1 Register
IMUX1
0x381
Interrupt Multiplexer 2 Register
IMUX2
0x390
Carrier Control Register
CCR