Date   : Thu, 26 Feb 1987 14:17:21 GMT
From   : adm!prindle%nadc.arpa@adm.brl.mil
Subject: re: USART-8251 mode byte

The mode byte bits are as follows:
       Bits 7-6:       Number of stop bits
               00: invalid
               01: 1 bit
               10: 1.5 bits
               11: 2 bits
       Bit 5:          Parity type
               0: odd
               1: even
       Bit 4:          Parity enable
               0: disable
               1: enable
       Bits 3-2:       Character length (not including parity bit)
               00: 5 bits
               01: 6 bits
               10: 7 bits
               11: 8 bits
       Bits 1-0:       Clock multiplier
               00: Sync mode
               01: 1X
               10: 16X
               11: 64X
Thus 07AH is the correct setting for Seven bits, even parity, one stop bit,
16X clock.  05AH is the same with odd parity.
Sincerely,
Frank Prindle
Prindle@NADC.arpa