VersaLogic Lion VL-EPMe-42 Reference Manual page 34

UART2CR – UART2 Control Register (COM2)
Reset type is Platform.
Note:
The BIOS (via ACPI) may modify this register when in an ACPI-capable operating system. The
register can be read for status purposes but do not write to it unless you are using a non-ACPI operating
system.
Table 34: UART2CR – UART2 Control Register (COM2)
Bits Identifier
7 IRQEN
6-4 IRQSEL(2:0)
3-0 UART2_BASE(3:0)
Lion (VL-EPMe-42) Programmer's Reference Manual
Access Default
UART interrupt enable/disable:
R/W
0 0 – Interrupts disabled
1 – Interrupts enabled
UART interrupt IRQ select in LPC SERIRQ:
000 – IRQ3 [ COM2 Default]
001 – IRQ4
010 – IRQ5
R/W
000 011 – IRQ10
100 – IRQ6
101 – IRQ7
110 – IRQ9
111 – IRQ11
UART Base Address:
0000 - 3F8h
0001 - 2F8h <= COM2 Default
0010 - 220h
0011 - 228h
0100 - 238h
0101 - 2E8h
R/W
0001
0110 - 338h
0111 - 3E8h
1000 - 200h (requires using LPC generic I/O) Reserved to
Customer
1001 - 208h (requires using LPC generic I/O) Reserved to
Customer
1010-1111  These values are reserved; do not use.
FPGA Registers
Description
30