UPD78F1201MC-CAB-AX Renesas Electronics America, UPD78F1201MC-CAB-AX Datasheet - Page 272

• Manufacturer Part Number: UPD78F1201MC-CAB-AX
• Description: MCU 16BIT 78K0R/LX3 30-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1201MC-CAB-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Caution The following rules apply when using multiple channels simultaneously.
6.1.3 LIN-bus supporting function
LIN-bus communication format.
Remark For details about setting up the operations used to implement the LIN-bus, see 6.3 (24) Input switch
270
Chanel 7 of Timer array unit TAUS is used to check whether signals received in LIN-bus communication match the
(1) Detection of wakeup signal
(2) Detection of sync break field
(3) Measurement of pulse width of sync field
Note Timer channel 7 can be used for the LIN-bus function in all products of the 78K0R/Ix3.
The timer starts counting at the falling edge of a signal input to the serial data input pin (RxD0) of UART0 and
the count value of the timer is captured at the rising edge. In this way, a low-level width can be measured. If
the low-level width is greater than a specific value, it is recognized as a wakeup signal.
The timer starts counting at the falling edge of a signal input to the serial data input pin (RxD0) of UART0 after
a wakeup signal is detected, and the count value of the timer is captured at the rising edge. In this way, a low-
level width is measured. If the low-level width is greater than a specific value, it is recognized as a sync break
field.
After a sync break field is detected, the low-level width and high-level width of the signal input to the serial
data input pin (RxD0) of UART0 are measured. From the bit interval of the sync field measured in this way, a
baud rate is calculated.
• Only an even-numbered channel (channel 0, 2, 4, …) can be specified as the master channel.
• Only channels with lower channel numbers than the master channel can be specified as slave
For details about the rules of simultaneous channel operation function, see 6.4 Basic Rules of
Simultaneous Channel Operation Function.
control register (ISC) and 6.7.5 Operation as input signal high-/low-level width measurement.
channels (multiple slave channels can be set).
Also, when RxD0 functions alternately as a timer input pin, the corresponding timer input pin channels can
also be used for the LIN-bus function. The timer channels in each product of the 78K0R/Ix3 that can be
used for the LIN-bus function in addition to timer channel 7 are shown below.
78K0R/IB3 (P11/RxD0/TI03/TO03)
38-pin products of 78K0R/IC3 (P72/INTP6/RxD0)
44-pin and 48-pin products of 78K0R/IC3, 78K0R/ID3,
78K0R/IE3 (P74/RxD0/TI10/SI00)
CHAPTER 6 TIMER ARRAY UNIT TAUS
User’s Manual U19678EJ1V1UD
: Channel 3 of TAUS
: None
: Chanel 10 of TAUS