UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 493

• Manufacturer Part Number: UPD78F0550MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0550MA-FAA-AX

• Package / Case: *
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 10MHz
• Number Of I /o: 12
• Core Processor: 78K/0
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Program Memory Size: 4KB (4K x 8)
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Peripherals: LVD, POR, PWM, WDT
• Connectivity: I²C, LIN, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Remarks 1. Conform to the specifications of the product that is communicating, with respect to the transmission
2. To use the device as a master in a multi-master system, read the MSTS0 bit each time interrupt
3. To use the device as a slave in a multi-master system, check the status by using the IICAS0 and
No
No
and reception formats.
INTIICA0 has occurred to check the arbitration result.
IICAF0 registers each time interrupt INTIICA0 has occurred, and determine the processing to be
performed next.
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 15-31. 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
CHAPTER 15 SERIAL INTERFACE IICA
Starts communication
(specifies an address and transfer direction).
Starts transmission.
Waits for detection of ACK.
Waits for data transmission.
Preliminary User’s Manual U19111EJ2V1UD
Does not participate
in communication.
SPT0 = 1
END
2
2
1
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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