UPD78F0551MA-FAA-AX Renesas Electronics America, UPD78F0551MA-FAA-AX Datasheet - Page 461

• Manufacturer Part Number: UPD78F0551MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0551MA-FAA-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 9
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2-L
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Remark LIN stands for Local Interconnect Network and is a low-speed (1 to 20 kbps) serial communication protocol
Notes 1.
Remark The interval between each field is controlled by software.
INTST6
Figures 14-1 and 14-2 outline the transmission and reception operations of LIN.
LIN Bus
(output)
2.
3.
Note 3
TX6
intended to aid the cost reduction of an automotive network.
LIN communication is single-master communication, and up to 15 slaves can be connected to one 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.
The wakeup signal frame is substituted by 80H transmission in the 8-bit mode.
The sync break field is output by hardware. The output width is the bit length set by bits 4 to 2 (SBL62 to
SBL60) of asynchronous serial interface control register 6 (ASICL6) (refer to 14.4.2 (2) (h)
transmission).
INTST6 is output on completion of each transmission. It is also output when SBF is transmitted.
signal frame
8 bits
Wakeup
Note 1
Figure 14-1. LIN Transmission Operation
13-bit
transmission
break field
Sync
Note 2
SBF
transmission
Sync field
55H
CHAPTER 14 SERIAL INTERFACE UART6
transmission
Identifier
Data
field
transmission
Data field
Data
transmission
Data field Checksum
Data
transmission
field
Data
SBF
447