NUTINY-SDK-120 Nuvoton Technology Corporation of America, NUTINY-SDK-120 Datasheet - Page 48

• Manufacturer Part Number: NUTINY-SDK-120
• Description: BOARD EVALUATION NUC120 SERIES
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™r
• Type: MCUr

Specifications of NUTINY-SDK-120

• Contents: Board, Cable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: NUC120LE3AN, NUC120 Series

5.6
5.6.1
I
exchange between devices. The I
detection and arbitration that prevents data corruption if two or more masters attempt to control
the bus simultaneously. Serial, 8-bit oriented bi-directional data transfers can be made up 1.0
Mbps.
Data is transferred between a Master and a Slave synchronously to SCL on the SDA line on a
byte-by-byte basis. Each data byte is 8 bits long. There is one SCL clock pulse for each data bit
with the MSB being transmitted first. An acknowledge bit follows each transferred byte. Each bit is
sampled during the high period of SCL; therefore, the SDA line may be changed only during the
low period of SCL and must be held stable during the high period of SCL. A transition on the SDA
line while SCL is high is interpreted as a command (START or STOP). Please refer to the Figure
5-9 for more detail I
The device’s on-chip I
specification. The I
in I2CON should be set to '1'. The I
Pull up resistor is needed for I
used as I
2
C is a two-wire, bi-directional serial bus that provides a simple and efficient method of data
I
2
C Serial Interface Controller (Master/Slave) (I
Overview
2
C port, user must set the pins function to I
2
2
C port handles byte transfers autonomously. To enable this port, the bit ENS1
C BUS Timing.
2
C logic provides the serial interface that meets the I
2
C operation as these are open drain pins. When the I/O pins are
Figure 5-9 I
2
2
C H/W interfaces to the I
C standard is a true multi-master bus including collision
- 48 -
2
C Bus Timing
NuMicro™ NUC120 Data Sheet
2
C in advance.
Publication Release Date: Nov. 11, 2010
2
C)
2
C bus via two pins: SDA and SCL.
2
C bus standard mode
Revision V2.00