MC68HC908MR8 Datasheet, PDF (278/372 Pages) Motorola, Inc – Microcontrollers

Serial Communications Interface (SCI)
SCP1:SCP0
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
Table 13-7. SCI Baud Rate Selection Examples
Prescaler
Divisor
(PD)
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
SCR2:SCR1:
SCR0
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
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_OP = 7.3728 MHz)
115,200.00
57,600.00
28,800.00
14,400.00
7200.00
3600.00
1800.00
900.00
38,400.00
19,200.00
9600.00
4800.00
2400.00
1200.00
600.00
300.00
28,800.00
14,400.00
7200.00
3600.00
1800.00
900.00
450.00
225.00
8861.54
4430.77
2215.38
1107.69
553.85
276.92
138.46
69.23
Baud Rate
(f_OP = 8.00 MHz)
125,000.00
62,500.00
31,250.00
15,625.00
7812.50
3906.25
1953.13
976.56
41,666.67
20,833.33
10,416.67
5208.33
2604.17
1302.08
651.04
325.52
31,250.00
15,625.50
7812.50
3906.25
1953.13
976.56
488.28
244.14
9615.38
4807.69
2403.85
1201.92
600.96
300.48
150.24
75.12
Technical Data
278
Serial Communications Interface (SCI)
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor