UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 454

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

454
D
MSTS0 = 1?
IICBSY = 0?
STCF = 0?
STT0 = 1
STT0 = 1
Wait
Wait
A
C
B
C
Yes
Yes
Yes
Enables reserving communication.
Disables reserving communication.
Figure 17-24. Master Operation in Multi-Master System (2/3)
Wait state after stop condition
was detected and start condition
was generated by the communication
reservation function.
No
No
No
Prepares for starting communication
(generates a start condition).
Secure wait time by software
(see Table 17-6).
Prepares for starting communication
(generates a start condition).
Secure wait time by software
(see Table 17-7).
CHAPTER 17 SERIAL INTERFACE IIC0
User’s Manual U17260EJ6V0UD
No
EXC0 = 1 or COI0 =1?
EXC0 = 1 or COI0 =1?
interrupt occurs?
interrupt occurs?
Slave operation
Slave operation
INTIIC0
INTIIC0
Yes
Yes
Yes
Yes
No
No
No
Waits for bus release
(communication being reserved).
Waits for bus release
Detects a stop condition.
D