MC68HC908QB8 Datasheet, PDF (134/236 Pages) Freescale Semiconductor, Inc – To provide the most up-to-date information, the revision of our documents

Enhanced Serial Communications Interface (ESCI) Module
PDS[2:1:0]
000
111
111
111
111
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
Table 13-10. ESCI Baud Rate Selection Examples
PSSB[4:3:2:1:0]
XXXXX
00000
00001
00010
11111
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
SCP[1:0]
00
00
00
00
00
00
00
00
00
00
00
00
01
01
01
01
01
01
01
01
10
10
10
10
10
10
10
10
11
11
11
11
11
11
11
11
Prescaler
Divisor
(BPD)
1
1
1
1
1
1
1
1
1
1
1
1
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
13
13
13
13
13
13
13
13
SCR[2:1:0]
000
000
000
000
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
Baud Rate
Divisor
(BD)
1
1
1
1
1
2
4
8
16
32
64
128
1
2
4
8
16
32
64
128
1
2
4
8
16
32
64
128
1
2
4
8
16
32
64
128
Baud Rate
(f_Bus= 4.9152 MHz)
76,800
9600
9562.65
9525.58
8563.07
38,400
19,200
9600
4800
2400
1200
600
25,600
12,800
6400
3200
1600
800
400
200
19,200
9600
4800
2400
1200
600
300
150
5908
2954
1477
739
369
185
92
46
MC68HC908QB8 Data Sheet, Rev. 1
134
Freescale Semiconductor