5-3
PC-510 user’s manual
Serial ports
COM2
COM2 is either a full 8-wire RS-232 (standard) or an industrial
4-wire RS-232 (optional) configuration. RI on COM2 can be used as a
method of “waking up” the PC-510 from a power management
SUSPEND operation. Refer to the
CPU power management
chapter for
more information. The I/O address for COM2 is 2F8h (default) but can
be changed in SETUP to any of the addresses in the table below. For
more information on running SETUP, refer to the
SETUP programs
chapter. IRQ3 is dedicated to COM2. If COM2 is not used under inter-
rupt control, IRQ3 may be used by other resources such as the PC/104
expansion board, the GPS module, IRQ routing, etc. Refer to the
IRQ
routing and opto IRQs
chapter for details. COM1 and COM2 share the
J7, 20-pin header.
Table 5-4
COM2 available addresses (IRQ3 dedicated)
COM2 available addresses
'(
+()
(
(
(
*(
*'(
+(
*(
)/
Note
See the
Accessories
appendix for connector information on COM1 and
COM2.
COM3 through COM6 interrupt/status port
COM3 through COM6 share the same interrupt—they default to IRQ15.
To determine which serial port caused the interrupt, you must first read
the interrupt status port. Follow these steps to read the interrupt
status port:
1. Refer to Table 5-5 to read register 0A9h, which includes I/O range select
A (bit 5) and I/O range select B (bit 4) information.
Table 5-5
Register 0A9h
Bit
Description
>
* ( ?@HLWXY
#
"
Z [\Z!
Z []Z!
"
H ^?WX_'Y
H ^?WX#Y
'
H!*!*`H^?WX_'Y
Содержание PC-510
Страница 2: ...O C T A G O N S Y S T E M S Embedded PCs For Extreme Environments PC 510 User s Manual 5171 0505 ...
Страница 7: ...Notice to user PC 510 user s manual ...
Страница 17: ...xii Contents PC 510 user s manual ...
Страница 23: ...About this manual PC 510 user s manual ...
Страница 25: ...Overview of Section 1 PC 510 user s manual ...
Страница 35: ...2 2 Quick start PC 510 user s manual Figure 2 1 PC 510 component diagram ...
Страница 36: ...2 3 PC 510 user s manual Quick start Figure 2 2 PC 510 center to center hole dimensions 331 2 858 ...
Страница 45: ...2 12 Quick start PC 510 user s manual ...
Страница 55: ...3 10 SETUP programs PC 510 user s manual ...
Страница 59: ...4 4 Save and run programs PC 510 user s manual ...
Страница 61: ...Overview of Section 2 PC 510 user s manual ...
Страница 73: ...5 12 Serial ports PC 510 user s manual ...
Страница 77: ...6 4 LPT1 parallel port PC 510 user s manual ...
Страница 83: ...7 6 Console devices PC 510 user s manual ...
Страница 119: ...13 8 CRTs and flat panels PC 510 user s manual ...
Страница 123: ...14 4 GPS interface PC 510 user s manual ...
Страница 125: ...15 2 PC 104 expansion PC 510 user s manual ...
Страница 127: ...Overview of Section 3 PC 510 user s manual ...
Страница 131: ...16 4 Watchdog timer and hardware reset PC 510 user s manual ...
Страница 147: ...18 8 Transferring files remote disks PC 510 user s manual ...
Страница 177: ...21 22 CPU power management PC 510 user s manual ...
Страница 181: ...22 4 Troubleshooting PC 510 user s manual ...
Страница 183: ...Overview of Section 4 PC 510 user s manual ...
Страница 203: ...A 20 Technical data PC 510 user s manual ...
Страница 231: ...B 28 Software utilities PC 510 user s manual ...