UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 372

• Manufacturer Part Number: UPD78F0034BGC-8BS-A
• Description: MCU 8-Bit 78K0 CISC 32KB Flash 2.5V/3.3V/5V 64-Pin LQFP
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0034BGC-8BS-A

• Package: 64LQFP
• Family Name: 78K0
• Maximum Speed: 12 MHz
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 51
• Interface Type: 3-Wire/UART
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

370
CHAPTER 18 SERIAL INTERFACE IIC0 ( PD780024AY, 780034AY SUBSERIES ONLY)
Transfer slave address.
IIC0
Issue stop condition.
Issue start condition.
Clear INTIIC0.
INTIIC0 = 1?
ACKD0 = 1?
SPD0 = 1?
STD0 = 1?
Reception
SPT0 = 1
STT0 = 1
address, R/W (1)
END
C
D
Yes
Yes
Yes
Yes
Figure 18-21. Master Operation Flowchart (4/5)
End (no acknowledgment)
No
No
No
No
User’s Manual U14046EJ5V0UD
When transmission is completed, issue the
stop condition to notify the slave of
completion of transmission.
For reception, the data transfer direction
must be changed. Issue the start condition
again and redo (restart) communication.
Because the master receives data this time,
set the R/W bit to 1 and transmit an
address.