NUC120RD1BN Nuvoton Technology Corporation of America, NUC120RD1BN Datasheet - Page 266

• Manufacturer Part Number: NUC120RD1BN
• Description: IC MCU 32BIT 64KB FLASH 64LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™r

Specifications of NUC120RD1BN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, LVD, POR, PS2, PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K 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: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

5.6.4.5
5.6.4.6
from bus error, STO should be set and SI should be clear to enter not addressed slave mode.
Then clear STO to release bus and to wait new communication. I
condition during this action when bus error occurs.
The data baud rate of I
not important when I
with any clock frequency up to 1MHz from master I
The data baud rate of I
If system clock = 16 MHz, the I2CLK [7:0] = 40 (28H), so data baud rate of I
+1)) = 97.5 Kbits/sec. The block diagram is showed as Figure 5-25.
There is a 14-bit time-out counter which can be used to deal with the I
out counter is enabled, the counter starts up counting until it overflows (TIF=1) and generates I
interrupt to CPU or stops counting by clearing ENTI to 0. When time-out counter is enabled,
setting flag SI to high will reset counter and re-start up counting after SI is cleared. If I
hangs up, it causes the I2CSTATUS and flag SI are not updated for a period, the 14-bit time-out
counter may overflow and acknowledge CPU the I
bit time-out counter. User may write 1 to clear TIF to zero.
I
The I
2
C Clock Baud Rate Bits (I2CLK)
2
C Time-out Counter Register (I2CTOC)
NuMicro™ NUC100 Series Technical Reference Manual
2
C is in a slave mode. In the slave modes, I
2
2
Figure 5-25: I
C setting is Data Baud Rate of I
C is determines by I2CLK [7:0] register when I
2
C Time-out Count Block Diagram
- 266 -
2
2
C interrupt. Refer to the Figure 5-25 for the 14-
C device.
2
C = (system clock) / (4x (I2CLK [7:0] +1)).
Publication Release Date: Dec. 22, 2010
2
C will automatically synchronize
2
C bus can not recognize stop
2
2
C is in a master mode. It is
C bus hang-up. If the time-
2
C = 16 MHz/ (4x (40
Revision V1.06
2
C bus
2
C