Configuring the PKLR2400
Preliminary
33
7.1.6
Baud High (BH) and Baud Low (BL)
EEPROM Address: 40H and 41H respectively
Size: 1 bytes
Default: FF for BH and F1 for BL
Range: 00-FF for BH and BL
Baud High (BH) along with Baud Low (BL) is used to establish the data rate over the interface
between the OEM radio and host as follows:
Sample BHBL selections for common Baud Rates
(Using a 28.224 MHz Crystal)
Baud Rate
BH
BL
300
F4
84
2,400
FE
91
4,800
FF
48
9,600
FF
A4
19,200
FF
D2
28,800
FF
E1
57,600 (default)
FF
F1
115,200
Not Supported
Not Supported
Custom baud rates can be obtained through the use of the following formula:
28.224 * 10
6
BAUD RATE = 32.0 * (65,536 – BH,BL)
Note: The calculated value must be within 3% of the actual value.
