UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 420

• 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

420
(14) Bus status detector
This circuit detects whether or not the bus is released by detecting start conditions and stop conditions.
However, as the bus status cannot be detected immediately following operation, the initial status is set by the
STCEN bit.
Remark
STT0 bit:
SPT0 bit:
IICRSV bit: Bit 0 of IIC flag register 0 (IICF0)
IICBSY bit: Bit 6 of IIC flag register 0 (IICF0)
STCF bit:
STCEN bit: Bit 1 of IIC flag register 0 (IICF0)
Bit 1 of IIC control register 0 (IICC0)
Bit 0 of IIC control register 0 (IICC0)
Bit 7 of IIC flag register 0 (IICF0)
CHAPTER 17 SERIAL INTERFACE IIC0
User’s Manual U17260EJ6V0UD