UPD78F0551MA-FAA-AX Renesas Electronics America, UPD78F0551MA-FAA-AX Datasheet - Page 544

• Manufacturer Part Number: UPD78F0551MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0551MA-FAA-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 9
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 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: -

78K0/Kx2-L
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Remarks 1. Conform to the specifications of the product that is communicating, with respect to the transmission and
(3) Slave operation
The processing procedure of the slave operation is as follows.
2. To use the device as a master in a multi-master system, read the MSTS0 bit each time interrupt INTIICA0
3. To use the device as a slave in a multi-master system, check the status by using the IICAS0 and IICAF0
reception formats.
has occurred to check the arbitration result.
registers each time interrupt INTIICA0 has occurred, and determine the processing to be performed next.
No
No
EXC0 = 1 or COI0 = 1?
interrupt occurs?
interrupt occurs?
Slave operation
Transfer end?
MSTS0 = 1?
ACKD0 = 1?
MSTS0 = 1?
ACKD0 = 1?
Writing IICA
Writing IICA
TRC0 = 1?
WTIM0 = 1
INTIICA0
INTIICA0
STT0 = 1
Restart?
Figure 15-30. Master Operation in Multi-Master System (3/3)
C
C
2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
Starts communication
(specifies an address and transfer direction).
Starts transmission.
Waits for detection of ACK.
Waits for data transmission.
Does not participate
in communication.
SPT0 = 1
END
2
2
1
CHAPTER 15 SERIAL INTERFACE IICA
WTIM0 = WREL0 = 1
interrupt occurs?
interrupt occurs?
Transfer end?
Reading IICA
MSTS0 = 1?
MSTS0 = 1?
WREL0 = 1
ACKE0 = 1
WTIM0 = 0
ACKE0 = 0
INTIICA0
INTIICA0
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Starts reception.
Waits for data reception.
Waits for detection of ACK.
2
2
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