C Control Registers - NEC V850ES/SA2 UPD703201 Manual

2
12.4.2 I

C control registers

2
I C is controlled by the following registers.
• IIC control register (IICC)
• IIC status register (IICS)
• IIC clock selection register (IICCL)
• IIC function expansion register (IICX)
The following registers are also used.
• IIC shift register (IIC)
• Slave address register (SVA)
(1) IIC control register (IICC)
The IICC register is used to enable/disable I
The IICC register can be set by an 8-bit or 1-bit memory manipulation instruction.
RESET input clears the IICC register to 00H.
Caution When using the I
selecting I
Also set the N-ch open-drain output mode (refer to 4.3.5 (2) (e) Port function register 4
(PF4)).
348
CHAPTER 12 SERIAL INTERFACE FUNCTION
2
C operations, set wait timing, and set other I
2
C bus mode, set the port in the control mode (refer to 12.1.2 CSI0 and
2
C mode).
Preliminary User's Manual U15905EJ1V0UD
2
C operations.