UPD78F0513AGB-GAF-AX Renesas Electronics America, UPD78F0513AGB-GAF-AX Datasheet - Page 591

• Manufacturer Part Number: UPD78F0513AGB-GAF-AX
• Description: MCU 8BIT 44-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2r

Specifications of UPD78F0513AGB-GAF-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K 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: -

78K0/Kx2
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
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.
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
After that, the master generates a stop condition or restart condition.
Clearing communication
ACKE0 = WTIM0 = 1
SPIE0 = 0, IICE0 = 1
Clearing ready flag
direction flag = 1?
direction flag = 1?
Communication
Ready flag = 1?
Communication
Communication
Communication
mode flag = 1?
IICCL0
Setting IICRSV
mode flag = 1?
IICX0
SVA0
IICC0
IICF0
ACKD0 = 1?
Writing IIC0
WREL0 = 1
Figure 18-25. Slave Operation Flowchart (1)
Setting port
mode flag
START
Yes
Yes
Yes
Yes
Yes
0XH
XXH
0XH
XXH
No
XXH
No
No
Yes
Starts
transmission.
Selects a transfer clock.
Sets a local address.
Sets a start condition.
Sets each pin to the I
2
C mode (see 18.3 (7) Port mode register 6 (PM6)).
No
CHAPTER 18 SERIAL INTERFACE IIC0
Clearing ready flag
direction flag = 0?
Communication
Communication
Ready flag = 1?
mode flag = 1?
Reading IIC0
WREL0 = 1
Yes
Yes
Yes
No
No
Starts
reception.
Exit from the
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