CXM543 User’s Manual
Doc.# 6001-0015 Rev 1.2
Page 23
00
Not Used
01
CPU Clock Speed Divisor
1-7 Clock Divisor
8- 0=Run at full clock speed 1=Enable clock division
CPU Speed = 4.9152Mhz/(129-ClockDivisor)
This allows the use of lower UART baud rates and lower
power consumption.
For example 300 baud could be used with the Clock
Divisor set to 125 to divide the clock rate by 4 and the
baud rate control register set to 255.
02
Operating Mode
1- Send corrected data.
2- Autosend data until stop autosend command received.
3- Send data only once (on power up or single data by
command)
4- Send data in a text format
5- Send data in a decimal format (only checked if in text
format)
6- Calibration mode uses this bit
7- Send check sum with data.
8- Send angles
03
More Operating Mode
1- Send Check Sum with Data
2- Not used
3- Not used
4- Not used
5- Not used
6- Not used
7- Not used
8- Not used
04
Baud Rate Control
BaudRate = 4.9152Mhz / 16*(BaudRate1)
Values for common baud rates with no clock dividing:
1200: 255(FFH)
19200: 31 (1FH)
2400: 127(7FH)
38400: 7 (7H)
9600: 63(3FH)
76800: 3 (3H)
05
Not used
06-07
Soft offset X accelerometer
08-09
Soft offset Y accelerometer
0A-0B Soft offset Z accelerometer
0C-0D
Soft scale X accelerometer
0E-0F
Soft scale Y accelerometer
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