Z8FMC04100 ZILOG [Zilog, Inc.], Z8FMC04100 Datasheet - Page 164

• Manufacturer Part Number: Z8FMC04100
• Description: Z8 Encore-R Motor Control Flash MCUs
• Manufacturer: ZILOG [Zilog, Inc.]

142
Z8 Encore!
Product Specification
LIN-UART
Applicable
Applicable
Rate (kHz)
Rate (kHz)
1250.0
1250.0
625.0
250.0
625.0
250.0
115.2
115.2
57.6
38.4
19.2
57.6
38.4
19.2
®
Motor Control Flash MCUs
(Decimal)
(Decimal)
The baud rate error relative to the appropriate baud rate is calculated using the following
equation:
For reliable communication, the LIN-UART baud rate error must never exceed 5 percent.
Tables 78 through 82 provide error data for popular baud rates and commonly-used crystal
oscillator frequencies for normal UART modes of operation.
UART Baud Rate Error (%)
Divisor
Divisor
BRG
BRG
N/A
22
33
65
16
33
11
11
1
2
5
1
3
5
Table 78. LIN-UART Baud Rates, 20.0 MHz System Clock
Table 79. LIN-UART Baud Rates, 10.0 MHz System Clock
Actual Rate
Actual Rate
1250.0
208.33
113.64
(kHz)
625.0
250.0
56.82
37.88
19.23
(kHz)
625.0
125.0
56.8
39.1
18.9
N/A
–16.67
Error(
Error(
–1.19
–1.36
–1.36
–1.36
0.00
0.00
0.00
0.16
0.00
8.51
1.73
0.16
N/A
%)
%)
P R E L I M I N A R Y
=
100
×


Actual Data Rate Desired Data Rate
----------------------------------------------------------------------------------------------------
Applicable
Applicable
Rate (kHz)
Rate (kHz)
9.60
4.80
2.40
1.20
0.60
0.30
9.60
4.80
2.40
1.20
0.60
0.30
Desired Data Rate
(Decimal)
(Decimal)
–
Divisor
Divisor
BRG
1042
2083
4167
BRG
2083
1042
130
260
521
130
260
521
65
Actual Rate
Actual Rate
2.399
(kHz)
1.199
0.299
(kHz)
9.62
4.81
0.60
9.62
4.81
2.40
1.20
0.60
0.30
PS024604-1005


Error(
Error(
–0.03
–0.03
–0.01
–0.03
–0.03
–0.03
0.16
0.16
0.02
0.16
0.16
0.2
%)
%)