🚀 go-pugleaf

In article <1992Oct10.144926.25225@mathsoft.com>, benji@mathsoft.com (Benjamin Cline) writes:
> 
> I have a RT with 2 of the 4 port RS232 serial boards (8 ports total). Anyone 
> know what the maximum speed for these ports is? 

Under AIX, and I assume AOS as well, the IBM book SA23-2605-0
shows the adapter to have the following features:

Slot positions: 2,4,5,7,8
I/O addresses:  range 1 1230-124F
                range 2 2230-224F
                range 3 3230-324F
                range 4 4230-424F
Interrupt levels: 9, 10, 11 (see note below)
Bit rates: 50 - 19200  (set by program)
Bits per character: 5, 6, 7, 8 (set by program)
Maximum number: 4

Notes:
 1)  If the RT PC 4-port Asyncronous RS-232C adapter (buffered)
     is instaled in the IBM RT PC 6192 Expansion Unit, only 
     interrupt level 9 can be used.
 2)  Interrupt levels CANNOT be shared between the system unit and
     the RT PC 6192.
 3)  All interrupt levels are shared, but interrupt level 11 cannot
     be shared with the SCSI adapter.  Also, interrupt level 9 cannot
     be shared with any of the 8-port async adapters.

Hope this helps.
Later,
markw
-- 
M. Whetzel 
Home: markw@antimatr.hou.tx.us        | IBM RT/125 running AIX 2.2.1 
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