I need to develop a multi port serial device driver and its device details are as follows,
Device is based on the 16C554 / 16C654 quad serial port IC.This device contains 4
identical sets of registers, one for each port, and is compatible with the standard PC serial
port. The 16C554 has 16-byte FIFOs for each port and operates up to 115.2kbaud, while the
16C654 has 64-byte FIFOs and operates up to 460.8kbaud.
Please provide the answers to few question.
- I want to understand, how exactly multiport really works internally as far as S/W and H/W is concerned. I meant there is exchange of data in read / write operation at multiple ports say 4 ports ( 5,6,7,8) then how data flow and things happening in the serial driver.