UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 575

• Manufacturer Part Number: UPD70F3738GF-GAS-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3738GF-GAS-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

16.6.7 LIN transmission/reception format
function.
The V850ES/JG3-L has an SBF (Sync Break Field) transmission/reception control function to enable use of the LIN
Remark
LIN
bus
TXDAn (output)
INTUAnT
interrupt
Notes 1. The interval between each field is controlled by software.
Figures 16-11 and 16-12 outline the transmission and reception manipulations of LIN.
2. SBF output is performed by hardware.
3. 80H transfer in the 8-bit mode is substituted for the wakeup signal frame.
4. A transmission enable interrupt request signal (INTUAnT) is output at the start of each transmission.
LIN stands for Local Interconnect Network and is a low-speed (1 to 20 kbps) serial communication
protocol intended to reduce costs of automotive networks.
LIN communication is single-master communication, and up to 15 slaves can be connected to the
master.
The LIN slaves are used to control the switches, actuators, and sensors, and these are connected to the
LIN master via the LIN network.
Normally, the LIN master is connected to a network such as CAN (Controller Area Network).
In addition, the LIN bus uses a single-wire method and is connected to the nodes via a transceiver that
complies with ISO9141.
In the LIN protocol, the master transmits a frame with baud rate information and the slave receives it and
corrects the baud rate error. Therefore, communication is possible when the baud rate error in the slave
is ±15% or less.
UAnOPT0.UAnSBL2 to UAnOPT0.UAnSBL0 bits.
required, such adjustments can be performed using the UAnCTLn.UAnBRS7 to UAnCTLn.UAnBRS0
bits.
The INTUAnT signal is also output at the start of each SBF transmission.
Wake-up
Note 3
8 bits
signal
frame
CHAPTER 16 ASYNCHRONOUS SERIAL INTERFACE A (UARTA)
Note 1
SBF transmission
Sync break
Figure 16-11. LIN Transmission Format
Note 2
13 bits
(SBF)
field
Note 4
User’s Manual U18953EJ5V0UD
transmission
Sync
55H
field
The output width is the bit length set by the
transmission
If even finer output width adjustments are
Data
field
ID
transmission
DATA
Data
field
transmission
DATA
Data
field
transmission
Check
SUM
field
Data
573