User Manual
202
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
System Control Unit - Digital Modules (SCU-DM)
Baud Rate Control Register 2
7.11.1.2 Baud-rate Generator Timer/Reload Registers
The low and high bytes of the baud rate timer/reload register BG contains the 11-bit reload value for the baud
rate timer and the 5-bit fractional divider selection.
Reading the low byte of register BG returns the content of the lower three bits of the baud rate timer and the
FD_SEL setting, while reading the high byte returns the content of the upper 8 bits of the baud rate timer.
Writing to register BG loads the baud rate timer with the reload and fractional divider values from the BG
register, the first instruction cycle after BCON.R is set.
SCU_BCON2
Offset
Reset Value
Baud Rate Control Register 2
098
H
see
Field
Bits
Type
Description
RES
31:4
r
Reserved
Returns 0 if read; should be written with 0.
BR2_PRE
3:1
rw
Prescaler Bit
Selects the input clock for
f
DIV
which is derived from the
peripheral clock.
Others: reserved
000
B
f
DIV
=
f
PCLK
001
B
f
DIV
=
f
PCLK
/2
010
B
f
DIV
=
f
PCLK
/4
011
B
f
DIV
=
f
PCLK
/8
100
B
f
DIV
=
f
PCLK
/16
101
B
f
DIV
=
f
PCLK
/32
BR2_R
0
rw
Baud Rate Generator Run Control Bit
Note:
BR_VALUE should only be written if R = 0.
0
B
Baud-rate generator disabled.
1
B
Baud-rate generator enabled.
Table 101 RESET
Register Reset Type
Reset Values
Reset Short Name
Reset Mode
Note
RESET_TYPE_3
0000 0000
H
RESET_TYPE_3
31
16
r
RES
15
4
r
RES
3
1
rw
BR2_PRE
00
rw
BR2_
R