NUMICRO-SDK Nuvoton Technology Corporation of America, NUMICRO-SDK Datasheet - Page 261

• Manufacturer Part Number: NUMICRO-SDK
• Description: KIT EVAUATION NUC100/120/130/140
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™r
• Type: MCUr

Specifications of NUMICRO-SDK

• Contents: Board, Cable, CD, Nu-Link
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: NUC100, NUC120, NUC130, NUC140

5.6.3
5.6.3.1
5.6.3.2
Normally, a standard communication consists of four parts:
A master-transmitter addressing a slave receiver with a 7-bit address
The transfer direction is not changed
A master reads a slave immediately after the first byte (address)
The transfer direction is changed
Function Description
1) START or Repeated START signal generation
2) Slave address and R/W bit transfer
3) Data transfer
4) STOP signal generation
I
Data transfer on the I
2
C Protocol
S
S
NuMicro™ NUC100 Series Technical Reference Manual
from master to slave
from slave to master
SLAVE ADDRESS
SLAVE ADDRESS
Figure 5-19 Master Transmits Data to Slave
Figure 5-20 Master Reads Data from Slave
2
C-bus
R/W
R/W
‘0’ : write
‘1’ : read
Figure 5-18 I
A
A
- 261 -
DATA
DATA
2
A = acknowledge (SDA low)
A = not acknowledge (SDA high)
S = START condition
P = STOP condition
C Protocol
(n bytes + acknowlegde)
(n bytes + acknowlegde)
data transfer
data transfer
Publication Release Date: Oct 22, 2010
A
A
DATA
DATA
A/A
A/A
Revision V1.06
P
P