Lines Matching +full:13 +full:- +full:bit

1 .\" -*- nroff -*-
3 .\" Copyright (c) 1996 A.R.Gordon, andrew.gordon@net-tel.co.uk
51 point-to-point network interface between two similarly configured systems.
54 and any standard AT-compatible printer port with working interrupts may be used.
73 .Bl -tag -width Fl
91 .Bd -literal
93 	2	15	Data0 -> ERROR*
94 	3	13	Data1 -> SLCT
95 	4	12	Data2 -> PE
96 	5	10	Data3 -> ACK*
97 	6	11	Data4 -> BUSY
98 	15	2	ERROR* -> Data0
99 	13	3	SLCT   -> Data1
100 	12	4	PE     -> Data2
101 	10	5	ACK*   -> Data3
102 	11	6	BUSY   -> Data4
103 	18-25	18-25	Ground
115 .Bl -tag -width dataxxxx(Pinxx)
117 Data out, bit 0.
119 Data out, bit 1.
121 Data out, bit 2.
125 Data out, bit 3.
127 Data in, bit 0.
128 .It Em SLCT (pin 13)
129 Data in, bit 1.
131 Data in, bit 2.
133 Data in, bit 3.
145 The packet format has a two-byte header, comprising the fixed values 0x08,
151 the data lines (i.e., writing the ones-complement of the previous nibble
154 Note that the end-of-packet marker assumes that the handshake signal and
155 the data-out bits can be written in a single instruction - otherwise
157 as end-of-packet.
162 .Bl -tag -width dataxxxx(Pinxx)
164 Data out, bit 0.
166 Data out, bit 1.
168 Data out, bit 2.
170 Data out, bit 3.
174 Data in, bit 0.
175 .It Em SLCT (pin 13)
176 Data in, bit 1.
178 Data in, bit 2.
180 Data in, bit 3.
194 .Bd -literal
214 for handshake-in cannot be used to generate an interrupt.
228 Busy-waiting loops are used while handshaking bytes, (and worse still when