C8051F560-TB Silicon Laboratories Inc, C8051F560-TB Datasheet - Page 192
![BOARD PROTOTYPE W/C8051F560](/photos/9/25/92557/c8051f560-tb_sml.jpg)
C8051F560-TB
Manufacturer Part Number
C8051F560-TB
Description
BOARD PROTOTYPE W/C8051F560
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Datasheet
1.TOOLSTICK560DC.pdf
(302 pages)
Specifications of C8051F560-TB
Contents
Board
Processor To Be Evaluated
C8051F56x
Processor Series
C8051F56x
Interface Type
USB
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
1.8 V to 5.25 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
C8051F55x, C8051F56x, C8051F57x
For Use With
336-1691 - KIT DEVELOPMENT FOR C8051F560
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1694
- Current page: 192 of 302
- Download datasheet (3Mb)
C8051F55x/56x/57x
20.1. Software Interface with the LIN Controller
The selection of the mode (Master or Slave) and the automatic baud rate feature are done though the LIN0
Control Mode (LIN0CF) register. The other LIN registers are accessed indirectly through the two SFRs
LIN0 Address (LIN0ADR) and LIN0 Data (LIN0DAT). The LIN0ADR register selects which LIN register is
targeted by reads/writes of the LIN0DAT register. The full list of indirectly-accessible LIN registers is given
in Table 20.4 on page 200.
20.2. LIN Interface Setup and Operation
The hardware based LIN controller allows for the implementation of both Master and Slave nodes with
minimal firmware overhead and complete control of the interface status while allowing for interrupt and
polled mode operation.
The first step to use the controller is to define the basic characteristics of the node:
Mode—Master or Slave
Baud Rate—Either defined manually or using the autobaud feature (slave mode only)
Checksum Type—Select between classic or enhanced checksum, both of which are implemented in hard-
ware.
20.2.1. Mode Definition
Following the LIN specification, the controller implements in hardware both the Slave and Master operating
modes. The mode is configured using the MODE bit (LIN0CF.6).
20.2.2. Baud Rate Options: Manual or Autobaud
The LIN controller can be selected to have its baud rate calculated manually or automatically. A master
node must always have its baud rate set manually, but slave nodes can choose between a manual or auto-
matic setup. The configuration is selected using the ABAUD bit (LIN0CF.5).
Both the manual and automatic baud rate configurations require additional setup. The following sections
explain the different options available and their relation with the baud rate, along with the steps necessary
to achieve the required baud rate.
20.2.3. Baud Rate Calculations: Manual Mode
The baud rate used by the LIN controller is a function of the System Clock (SYSCLK) and the LIN timing
registers according to the following equation:
The prescaler, divider and multiplier factors are part of the LIN0DIV and LIN0MUL registers and can
assume values in the following range:
Important Note : The minimum system clock (SYSCLK) to operate the LIN controller is 8 MHz.
Use the following equations to calculate the values for the variables for the baud-rate equation:
192
baud_rate
Table 20.1. Baud Rate Calculation Variable Ranges
=
prescaler
multiplier
Factor
divider
-------------------------------------------------------------------------------------------------------------------- -
2
prescaler
Rev. 1.1
+
1
SYSCLK
divider
200…511
Range
0…31
0…3
multiplier
+
1
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