MC68HC812A4 Datasheet, PDF (231/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

Serial Communications Interface Module (SCI)
Functional Description
Table 14-3. Baud Rates (Module Clock = 10.2 MHz)
Baud Rate
Divisor⁽¹⁾
Receiver
Clock Rate (Hz)⁽²⁾
Transmitter
Clock Rate (Hz)⁽³⁾
Target
Baud Rate
Error (%)
17
600,000.0
37,500.0
38,400
2.3
33
309,090.9
19,318.2
19,200
0.62
66
154,545.5
9659.1
9600
0.62
133
76,691.7
4793.2
4800
0.14
266
38,345.9
2396.6
2400
0.14
531
19,209.0
1200.6
1200
0.11
1062
9604.5
600.3
600
0.05
2125
4800.0
300.0
300
0.00
4250
2400.0
150.0
150
0.00
5795
1760.1
110.0
110
0.00
1. The baud rate divisor is the value written to the SBR12–SBR0 bits.
2. The receiver clock frequency is the MCLK frequency divided by the baud rate divisor.
3. The transmitter clock frequency is the receiver clock frequency divided by 16.
Advance Information
MOTOROLA
Serial Communications Interface Module (SCI)
MC68HC812A4 — Rev. 3.0
231