UPD78F1211GB-GAF-AX Renesas Electronics America, UPD78F1211GB-GAF-AX Datasheet - Page 807

• Manufacturer Part Number: UPD78F1211GB-GAF-AX
• Description: MCU 16BIT 78K0R/LX3 44-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1211GB-GAF-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• 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 MSTS bit each time interrupt
3. To use the device as a slave in a multi-master system, check the status by using the IICS and IICF
No
No
and reception formats.
INTIICA has occurred to check the arbitration result.
registers each time interrupt INTIICA has occurred, and determine the processing to be performed
next.
EXC = 1 or COI = 1?
interrupt occurs?
interrupt occurs?
Slave operation
Transfer end?
Writing IICA
Writing IICA
MSTS = 1?
ACKD = 1?
MSTS = 1?
ACKD = 1?
TRC = 1?
WTIM = 1
Restart?
STT = 1
INTIICA
INTIICA
Figure 14-29. 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 14 SERIAL INTERFACE IICA
Starts communication
(specifies an address and transfer direction).
Starts transmission.
Waits for detection of ACK.
Waits for data transmission.
Does not participate
in communication.
User’s Manual U19678EJ1V1UD
SPT = 1
END
2
2
1
WTIM = WREL = 1
interrupt occurs?
interrupt occurs?
Transfer end?
Reading IICA
MSTS = 1?
MSTS = 1?
WREL = 1
ACKE = 1
WTIM = 0
ACKE = 0
INTIICA
INTIICA
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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