TC1784
Asynchronous/Synchronous Serial Interface (ASC)
User´s Manual
16-16
V1.1, 2011-05
ASC, V1.6
16.1.5.2 Baud Rates in Synchronous Mode
For synchronous operation, the baud rate generator provides a clock
f
BRT
that runs with
four times the established baud rate (see
).
Figure 16-9 ASC Baud Rate Generator Circuitry in Synchronous Mode
The baud rate for synchronous operation of the serial channel ASC can be determined
by the formulas as shown in
BG represents the content of the reload register bit field BG.BR_VALUE, taken as an
unsigned 13-bit integer.
The maximum baud rate that can be achieved in Synchronous Mode when using a
module clock of 90 MHz is 11.25 Mbit/s.
Table 16-5
Synchronous Baud Rate Formulas
BRS
BG
Formula
0
0 … 8191
1
MCA06208
13-bit Baud Rate Timer
Shift /
Sample
Clock
13-bit Reload Register
BRS
f
BRT
f
DIV
R
f
ASC
2
BRS
0
1
Selected Divider
3
2
3
4
MUX
Baud rate
f
ASC
8
BG 1
+
(
)
×
---------------------------------
=
BG
f
ASC
8 Baud rate
×
----------------------------------- 1
–
=
Baud rate
f
ASC
12
BG 1
+
(
)
×
------------------------------------
=
BG
f
ASC
12 Baud rate
×
--------------------------------------- 1
–
=
Содержание TC1784
Страница 1: ...User s Manual V1 1 2011 05 Microcontrollers TC1784 32 Bit Single Chip Microcontroller ...
Страница 3: ...User s Manual V1 1 2011 05 Microcontrollers TC1784 32 Bit Single Chip Microcontroller ...
Страница 950: ...TC1784 Direct Memory Access Controller DMA User s Manual 11 132 V1 1 2011 05 DMA V3 03 ...
Страница 1949: ...TC1784 General Purpose Timer Array GPTA v5 User s Manual 21 297 V1 1 2011 05 GPTA v5 V1 14 ...
Страница 2350: ...w w w i n f i n e o n c o m Published by Infineon Technologies AG Doc_Number ...