UPD78F9222CS-CAC-A Renesas Electronics America, UPD78F9222CS-CAC-A Datasheet - Page 208

• Manufacturer Part Number: UPD78F9222CS-CAC-A
• Description: MCU 8BIT 4KB FLASH 20PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9222CS-CAC-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 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: -

206
Figure 11-16 shows an example of the continuous transmission processing flow.
Remark TXB6:
ASIF6: Asynchronous serial interface transmission status register 6
TXBF6: Bit 1 of ASIF6 (transmit buffer data flag)
TXSF6: Bit 0 of ASIF6 (transmit shift register data flag)
Figure 11-16. Example of Continuous Transmission Processing Flow
Transmit buffer register 6
executed necessary
completion interrupt
executed necessary
CHAPTER 11 SERIAL INTERFACE UART6
number of times?
number of times?
Transmission
Set registers.
Write TXB6.
Write TXB6.
Read
TXBF6 = 0?
occurred?
Transfer
Transfer
ASIF6
User’s Manual U16898EJ6V0UD
Yes
No
No
Yes
No
Yes
No
Yes
transmission processing
Completion of
Read
TXSF6 = 0?
ASIF6
Yes
Yes
No