Serial Byte ¹2 Breakdown - Zenith Z-100 Reference Manual

Table 8.4 further defines byte ¹ I by bit.
Table 8.4
Serial Byte ¹1 Breakdown
BIT
PARAMETER DESCRIPTION
Compatibility bit
If logic I, IBM-compatible DTR and RTS high.
If logic 0, handshake determined by bit l.
Protocol bit.
If logic 0, hardware handshake.
If logic I, software handshake.
If bit I is logic 0, bit 2 is logic I if DTR handshake active, logic
0 if not.
If bit 1 is logic I, bit 2 is logic I if DCI/DC3 handshake, logic 0
if ETX/ACK handshake.
If bit I is logic 0, bit 3 is polarity of DTR if DTR active.
If bit I is logic I, bit 3 is logic 1 if waiting for handshake character,
logic 0, if not.
If bit I is 0, bit 4 is logic I if RTS handshake active, 0 if not.
If bit I is logic 0, bit 5 is polarity of RTS if RTS active, 0 if low,
I if high.
Table 8.5 further defines byte ¹2.
Table 8.5. Serial Byte ¹2 Breakdown
BIT
PARAMETER DESCRIPTION
If logic 0, do not strip parity on input; if logic I, strip parity.
If logic 0, do not strip parity on output; if logic 1, strip parity.
If logic I, map lowercase to uppercase on input; if logic 0, do not
If logic I, map lowercase to uppercase on output; if logic 0, do not
Serial and Parallel Input/Output
Page 8.5