UPD78F0386GK-8EU-A Renesas Electronics America, UPD78F0386GK-8EU-A Datasheet - Page 392

• Manufacturer Part Number: UPD78F0386GK-8EU-A
• Description: MCU 96KB FLASH 5KB RAM
• Manufacturer: Renesas Electronics America
• Series: 78K0/Lx2r

Specifications of UPD78F0386GK-8EU-A

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: LCD, LVD, POR, PWM, WDT
• Number Of I /o: 26
• Program Memory Size: 96KB (96K x 8)
• Program Memory Type: FLASH
• Ram Size: 5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

390
Remark
The main processing of the slave operation is explained next.
Start serial interface IIC0 and wait until communication is enabled. When communication is enabled, execute
communication by using the communication mode flag and ready flag (processing of the stop condition and
start condition is performed by an interrupt. Here, check the status by using the flags).
The transmission operation is repeated until the master no longer returns ACK. If ACK is not returned from the
master, communication is completed.
For reception, the necessary amount of data is received. When communication is completed, ACK is not
returned as the next data. After that, the master generates a stop condition or restart condition. Exit from the
communication status occurs in this way.
Conform to the specifications of the product that is in communication, regarding the transmission and
reception formats.
No
No
No
Clearing communication
ACKE0 = WTIM0 = 1
SPIE0 = 0, IICE0 = 1
Clearing ready flag
direction flag = 1?
direction flag = 1?
Communication
Communication
Communication
Communication
Ready flag =
IICCL0
Setting IICRSV
mode flag = 1?
mode flag = 1?
SVA0
IICC0
IICX0
IICF0
ACKD0 = 1?
Writing IIC0
WREL0 = 1
mode flag
START
Yes
Yes
Yes
Yes
Yes
0XH
XXH
0XH
XXH
No
XXH
Figure 16-25. Slave Operation Flowchart (1)
1?
CHAPTER 16 SERIAL INTERFACE IIC0
No
No
Yes
Starts
transmission.
User’s Manual U17504EJ2V0UD
Selects a transfer clock.
Sets a local address.
Sets a start condition.
No
Clearing ready flag
direction flag = 1?
Communication
Communication
Ready flag =
mode flag = 1?
Reading IIC0
WREL0 = 1
Yes
Yes
Yes
1?
No
No
Starts
reception.