Renesas RL78 Series User Manual

RL78/F13, F14 CHAPTER 17 LIN/UART MODULE (RLIN3)
R01UH0368EJ0210 Rev.2.10 1225
Dec 10, 2015
(a) Continuous Transmission
The LIN/UART module (in UART mode) can transmit multiple sets of data continuously by using the LUTDRn
register. Figure 17-23 shows an operating example where the transmission interrupt generation timing is the
start of transmission. Figure 17-24 shows an operating example where the transmission interrupt generation
timing is the end of transmission.
Figure 17-23. LIN/UART Module (in UART mode) Continuous Transmission Operation
(when UTIGTS Bit in LUORn1 Register is 0)
Figure 17-24. LIN/UART Module (in UART mode) Continuous Transmission Operation
(when UTIGTS Bit in LUORn1 Register is 1)
An interrupt can be generated at the end of a transmission by changing the UTIGTS bit in the LUORn1 register from 0 to 1
after the start of transmission of final data, provided only that the transmission interrupt generation timing is the start of
transmission and the end of transmission of final data needs to be known.
LTXDn
Data 1 Data 2 Data (N-1) Data N
Data 2 Data 3 Data N
Shift register
for transmission
Data 1 Data 2
Data (N-1)
Data N
INTLINnTRM
n = 0, 1
The next transmission data is set.
LUTDRn register
UTS bit in
LSTn register
Data 1
LTXDn
Data 1
Data 2 Data (N-1) Data N
Data 1 Data 2 Data (N-1) Data N
Data 1 Data 2 Data (N-1) Data N
INTLINnTRM
The next transmission data is set.
n = 0, 1
LUTDRn register
Shift register
for transmission
UTS bit in
LSTn register

Renesas RL78 Series Specifications

General

Core	RL78
CPU Clock Speed	Up to 32 MHz
Flash Memory	Up to 512 KB
RAM	Up to 32 KB
Operating Voltage	1.6 V to 5.5 V
Low Power Modes	HALT, STOP, SNOOZE
CPU Architecture	16-bit
Temperature Range	-40°C to +85°C
Package	LQFP
Timers	16-bit timers
Communication Interfaces	UART, I2C, LIN
A/D Converter	12-bit