NUC140VE3CN Nuvoton Technology Corporation of America, NUC140VE3CN Datasheet - Page 197

• Manufacturer Part Number: NUC140VE3CN
• Description: IC MCU 32BIT 128KB FLASH 100LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™ NUC100r

Specifications of NUC140VE3CN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, LIN, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 76
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 8x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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
NuMicro™ NUC130/NUC140 Technical Reference Manual
S
from master to slave
from slave to master
SLAVE ADDRESS
Figure 5-20 Master Transmits Data to Slave
Figure 5-21 Master Reads Data from Slave
2
C-bus
R/W
‘0’ : write
Figure 5-19 I
A
- 197 -
DATA
2
A = acknowledge (SDA low)
A = not acknowledge (SDA high)
S = START condition
P = STOP condition
C Protocol
(n bytes + acknowlegde)
Publication Release Date: June 14, 2011
data transfer
A
DATA
A/A
Revision V2.01
P