getty-autobaud.txt

(STILL BEING REVISED, and beware that not all uarts behave the same)

Table showing whether a particular byte triggers a break condition when
receiver uart is configured at a higher baudrate than the transmitter uart and
both are 8N1.

always = byte always triggers break regardless of preceding data
init   = byte triggers break at least if preceded by line idle state
***    = not sure, dependent on subtle details of uart behaviour


xmit:	9600	38400	57600	38400	
recv:	38400	115200	115200	57600	
ratio:	4	3	2	1.5	

00	always	always	always	init	
01	always	always	-	-	
02	always	always	-	-	
03 ^C	always	always	-	-	
04	always	always	-	-	
05	always	always	-	-	
06	always	always	-	-	
07	always	always	-	-	
08	always	always	-	-	
09	always	-	-	-	
0a	always	-	-	-	
0b	always	-	-	-	
0c	always	always	-	-	
0d CR	always	always	-	-	
0e	always	always	-	-	
0f	always	always	-	-	
10	always	init	init	-	
11	always	-	-	-	
12	always	-	-	-	
13	always	-	-	-	
14	always	-	-	-	
15	***	-	-	-	
16	always	-	-	-	
17	always	-	-	-	
18	always	init	-	-	
19	always	-	-	-	
1a	always	-	-	-	
1b ESC	always	-	-	-	
1c	always	-	-	-	
1d	always	-	-	-	
1e	always	-	-	-	
1f	always	-	-	-	
20 ' '	always	always	init	***	
21 '!'	always	-	-	-	
22 '"'	always	-	-	-	
23 '#'	always	-	-	-	
24 '$'	init	-	-	-	
25 '%'	-	-	-	-	
26 '&'	-	-	-	-	
27 '''	-	-	-	-	
28 '('	always	init	-	-	
29 ')'	-	-	-	-	
2a '*'	-	-	-	-	
2b '+'	-	-	-	-	
2c ','	init	-	-	-	
2d '-'	-	-	-	-	
2e '.'	-	-	-	-	
2f '/'	-	-	-	-	
30 '0'	always	init	init	-	
31 '1'	init	-	-	-	
32 '2'	-	-	-	-	
33 '3'	-	-	-	-	
34 '4'	init	-	-	-	
35 '5'	-	-	-	-	
36 '6'	-	-	-	-	
37 '7'	-	-	-	-	
38 '8'	always	init	-	-	
39 '9'	-	-	-	-	
3a ':'	-	-	-	-	
3b ';'	-	-	-	-	
3c '<'	init	-	-	-	
3d '='	-	-	-	-	
3e '>'	-	-	-	-	
3f '?'	-	-	-	-	
40 '@'	always	always	init	init	
41 'A'	always	init	-	-	
42 'B'	always	init	-	-	
43 'C'	always	init	-	-	
44 'D'	always	-	-	-	
45 'E'	***	-	-	-	
46 'F'	always	-	-	-	
47 'G'	always	-	-	-	
48 'H'	always	init	-	-	
49 'I'	-	-	-	-	
4a 'J'	-	-	-	-	
4b 'K'	-	-	-	-	
4c 'L'	init	-	-	-	
4d 'M'	-	-	-	-	
4e 'N'	-	-	-	-	
4f 'O'	-	-	-	-	
50 'P'	always	init	init	-	
51 'Q'	init	-	-	-	
52 'R'	-	-	-	-	
53 'S'	-	-	-	-	
54 'T'	init	-	-	-	
55 'U'	-	-	-	-	
56 'V'	-	-	-	-	
57 'W'	-	-	-	-	
58 'X'	always	init	-	-	
59 'Y'	-	-	-	-	
5a 'Z'	-	-	-	-	
5b '['	-	-	-	-	
5c '\'	init	-	-	-	
5d ']'	-	-	-	-	
5e '^'	-	-	-	-	
5f '_'	-	-	-	-	
60 '`'	always	always	init	-	
61 'a'	always	-	-	-	
62 'b'	always	-	-	-	
63 'c'	always	-	-	-	
64 'd'	init	-	-	-	
65 'e'	-	-	-	-	
66 'f'	-	-	-	-	
67 'g'	-	-	-	-	
68 'h'	always	init	-	-	
69 'i'	-	-	-	-	
6a 'j'	-	-	-	-	
6b 'k'	-	-	-	-	
6c 'l'	init	-	-	-	
6d 'm'	-	-	-	-	
6e 'n'	-	-	-	-	
6f 'o'	-	-	-	-	
70 'p'	always	init	init	-	
71 'q'	init	-	-	-	
72 'r'	-	-	-	-	
73 's'	-	-	-	-	
74 't'	init	-	-	-	
75 'u'	-	-	-	-	
76 'v'	-	-	-	-	
77 'w'	-	-	-	-	
78 'x'	always	init	-	-	
79 'y'	-	-	-	-	
7a 'z'	-	-	-	-	
7b '{'	-	-	-	-	
7c '|'	init	-	-	-	
7d '}'	-	-	-	-	
7e '~'	-	-	-	-	
7f	-	-	-	-	
80	always	always	always	init	
81	always	always	-	-	
82	always	init	-	-	
83	always	always	-	-	
84	always	init	-	-	
85	always	init	-	-	
86	always	init	-	-	
87	always	always	-	-	
88	always	init	-	-	
89	always	-	-	-	
8a	init	-	-	-	
8b	always	-	-	-	
8c	always	-	-	-	
8d	always	-	-	-	
8e	always	-	-	-	
8f	always	-	-	-	
90	always	init	init	-	
91	init	-	-	-	
92	-	-	-	-	
93	-	-	-	-	
94	init	-	-	-	
95	-	-	-	-	
96	-	-	-	-	
97	-	-	-	-	
98	always	init	-	-	
99	-	-	-	-	
9a	-	-	-	-	
9b	-	-	-	-	
9c	init	-	-	-	
9d	-	-	-	-	
9e	-	-	-	-	
9f	-	-	-	-	
a0	always	always	init	-	
a1	always	-	-	-	
a2	always	-	-	-	
a3	always	-	-	-	
a4	init	-	-	-	
a5	-	-	-	-	
a6	-	-	-	-	
a7	-	-	-	-	
a8	always	init	-	-	
a9	-	-	-	-	
aa	-	-	-	-	
ab	-	-	-	-	
ac	init	-	-	-	
ad	-	-	-	-	
ae	-	-	-	-	
af	-	-	-	-	
b0	always	init	init	-	
b1	init	-	-	-	
b2	-	-	-	-	
b3	-	-	-	-	
b4	init	-	-	-	
b5	-	-	-	-	
b6	-	-	-	-	
b7	-	-	-	-	
b8	always	init	-	-	
b9	-	-	-	-	
ba	-	-	-	-	
bb	-	-	-	-	
bc	init	-	-	-	
bd	-	-	-	-	
be	-	-	-	-	
bf	-	-	-	-	
c0	always	always	init	init	
c1	always	init	-	-	
c2	always	init	-	-	
c3	always	init	-	-	
c4	always	-	-	-	
c5	***	-	-	-	
c6	always	-	-	-	
c7	always	-	-	-	
c8	always	init	-	-	
c9	-	-	-	-	
ca	-	-	-	-	
cb	-	-	-	-	
cc	init	-	-	-	
cd	-	-	-	-	
ce	-	-	-	-	
cf	-	-	-	-	
d0	always	init	init	-	
d1	init	-	-	-	
d2	-	-	-	-	
d3	-	-	-	-	
d4	init	-	-	-	
d5	-	-	-	-	
d6	-	-	-	-	
d7	-	-	-	-	
d8	always	init	-	-	
d9	-	-	-	-	
da	-	-	-	-	
db	-	-	-	-	
dc	init	-	-	-	
dd	-	-	-	-	
de	-	-	-	-	
df	-	-	-	-	
e0	always	always	init	-	
e1	always	-	-	-	
e2	always	-	-	-	
e3	always	-	-	-	
e4	init	-	-	-	
e5	-	-	-	-	
e6	-	-	-	-	
e7	-	-	-	-	
e8	always	init	-	-	
e9	-	-	-	-	
ea	-	-	-	-	
eb	-	-	-	-	
ec	init	-	-	-	
ed	-	-	-	-	
ee	-	-	-	-	
ef	-	-	-	-	
f0	always	init	init	-	
f1	init	-	-	-	
f2	-	-	-	-	
f3	-	-	-	-	
f4	init	-	-	-	
f5	-	-	-	-	
f6	-	-	-	-	
f7	-	-	-	-	
f8	always	init	-	-	
f9	-	-	-	-	
fa	-	-	-	-	
fb	-	-	-	-	
fc	init	-	-	-	
fd	-	-	-	-	
fe	-	-	-	-	
ff	-	-	-	-