UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 371

• 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

No
Transmit write data.
Prepare write data.
CHAPTER 18 SERIAL INTERFACE IIC0 ( PD780024AY, 780034AY SUBSERIES ONLY)
Transmission?
Clear INTIIC0.
Clear
Transfer end?
INTIIC0 = 1?
ACKD0 = 1?
INTIIC0 = 1?
ACKD0 = 1?
IIC0
TRC0 = 1?
INTIIC0.
C
B
Data
Yes
Yes
Yes
Yes
Yes
Yes
End (no acknowledgment)
Figure 18-21. Master Operation Flowchart (3/5)
No
No
No
No
Reception
User’s Manual U14046EJ5V0UD
Set error flag.
End
When writing data to EEPROM, continue
writing data.
When reading data from EEPROM, start
reception processing.
Prepare data to be written to EEPROM, and
transmit it to EEPROM.
Each time data has been transmitted, the
slave returns ACK. If any error occurs
before transmission of the necessary data is
completed, ACK may not be returned. In
this case, end transfer.
In the case of an error, set the error flag as
shown on the left, and release the bus.
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