UPD78F1146AGB-GAH-AX Renesas Electronics America, UPD78F1146AGB-GAH-AX Datasheet - Page 431

• Manufacturer Part Number: UPD78F1146AGB-GAH-AX
• Description: MCU 16BIT 78K0R/KX3 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3r

Specifications of UPD78F1146AGB-GAH-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Caution
Remark
Writing 1 to MDmn0 bit
Figure 11-78. Flowchart of UART Transmission (in Continuous Transmission Mode)
<1> to <6> in the figure correspond to <1> to <6> in Figure 11-77
Transmission (in Continuous Transmission Mode).
After setting the PER0 register to 1, be sure to set the SPSm register after 4 or more clocks
have elapsed.
Yes
No
SMRmn, SCRmn: Setting communication
SDRmn[15:9]:
SOLmn:
SOm, SOEm:
CHAPTER 11 SERIAL ARRAY UNIT
Clearing SAU1EN and SAU0EN
Setting SAU1EN and SAU0EN
Setting operation clock by
Starting UART communication
Clearing 0 to MDmn0 bit
Writing transmit data to
User’s Manual U17854EJ9V0UD
bits of PER0 register to 1
Communication continued?
bits of PER0 register to 0
End of communication
TXDq (=SDRmn[7:0])
Writing 1 to SSmn bit
Writing 1 to STmn bit
Transmitting next data?
Port manipulation
Buffer empty interrupt
Transfer end interrupt
SPSm register
Yes
TSFmn = 1?
No
No
Yes
Setting transfer rate
Setting output data level
Setting output
generated?
generated?
Yes
<3>
<5>
<2>
<4>
<6>
Yes
No
No
Perform initial setting when SEmn = 0.
<1> Select the buffer empty interrupt.
Timing Chart of UART
429