NEC 78014Y Series User Manual page 326

8-bit single-chip microcontrollers

Table of Contents

Serial Operating Mode Register 0

CSIE0 COI WUP CSIM

Control Circuit

Output Control

Output Control

SCL/SCK0/P27

Remark Output Control performs selection between CMOS output and N-ch open-drain output.

Figure 16-4. Serial Interface Channel 0 Block Diagram

Internal Bus

Slave Address

Serial I/O Shift

Output Latch

P26 Output Latch

Output Latch

Serial Bus Interface

Control Register

BSYE ACKD ACKE ACKT CMDD RELD CMDT RELT

Bus Release/

Request Signal

Serial Clock

Serial Clock

Control Circuit

CLD SIC SVAM CLC WREL WAT1 WAT0

Internal Bus

TCL33 TCL32 TCL31 TCL30

Interrupt Timing

Specification Register

Select Register 3