Renesas RL78 Series User Manual

RL78/F13, F14 CHAPTER 17 LIN/UART MODULE (RLIN3)
R01UH0368EJ0210 Rev.2.10 1201
Dec 10, 2015
17.4 LIN Mode
17.4.1 Operation Overview
(1) LIN Master Mode
(a) Header Transmission
Figure 17-5 shows the operation of the LIN/UART module (LIN master mode) in header transmission. Table 17-
7 provides processing in header transmission.
Figure 17-5. Operation in Header Transmission
Table 17-7.
Processing in Header Transmission
Step Software processing LIN/UART module processing
(1)
 Sets a baud rate
 Sets noise filter ON/OFF
 Enables interrupt
 Enables error detection
 Sets frame configuration parameters
 Changes the LIN/UART module to the LIN master mode: LIN operation mode
 Sets information on the frame to be transmitted (ID, parity, data length,
response direction, Checksum method, and transmission data)
Waits for the setting of the FTS bit in the
LTRCn register by software (idle).
(2) Sets the FTS bit in the LTRCn register to 1 (start a frame transmission or wake-
up transmission/reception).
Transmits a break.
(3) Waits for an interrupt request. Transmits a break delimiter.
(4) Transmits a sync field (55H).
(5) Transmits an inter-byte space (header).
(6) Transmits an ID field.
(7) Sets a successful header transmission
flag.
For information about error detection, refer to 17.4.6 Error Status.
Header
Break delimiter
Break
Break field Sync field
Inter-byte space (header)
Response
Data 1
ID + parity
ID field
(1) (2) (3) (4) (5) (6) (7)
Response space

Renesas RL78 Series Specifications

General

Brand	Renesas
Model	RL78 Series
Category	Computer Hardware
Language	English