B&B Electronics PCRTC Clock User Manual


 
2 Documentation Number PCRTC2095 Manual
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 433-5105
Chapter 2. Setup
Hardware Setup
The address switch on the PCRTC must be set to an
address which doesn’t conflict with other devices in the host
computer. The address settings are listed in Table 1, and are also
printed on the PCRTC card. The PCRTC is shipped from the factory
set for 200h. If you need to change this address, select one from the
table which will not conflict with another device in the host computer.
If the PCRTC does not operate properly, select a new address.
Remember to edit the file CONFIG.SYS to match the device driver
address to that used by the hardware. Appendix A contains a
hardware I/O address map for AT class PCs.
Table 1. Address Switch Settings
Hex
Address
Switch Settings
1234
200 0000
220 1000
240 0100
260 1100
280 0010
2A0 1010
2C0 0110
2E0 1110
300 0001
320 1001
340 0101
360 1101
380 0011
3A0 1011
3C0 0111
3E0 1111