Serial Ports
EPM-19 Hardware Reference Manual
33
Serial Port Assignment
The EPM
-
19 only supports the use of the Vortex86DX2 Serial Ports 1, 2, 4, and 9, so all other
serial ports are disabled and not available in the BIOS Setup Utility. Table 14 lists the
recommended settings for the Vortex86DX2 serial ports.
Table 14: Recommended Serial Port Settings for Vortex86DX2 BIOS
EPM
-
19 COM Port #
(Note)
I/O Address
IRQ
Vortex86DX2
Serial Port/UART #
COM1
3F8h
4
1
COM2
2F8h
10
9
COM3
3E8h
3
2
COM4
2E8h
11
4
Note:
COM ports are numbered to match EPM
-
19 I/O connector COM numbering.
Integrator’s Note:
During verification testing, the COM ports displayed data compare errors intermittently while
running CPU-intensive burn-in tests on a moderate-to-heavily loaded system. Since IRQ priorities
and small data FIFOs are involved here, users are cautioned to expect some lost COM port data
(particularly on the lower-priority IRQ COM ports) when they use multiple COM ports with the
system heavily-loaded.
