NUMICRO-SDK Nuvoton Technology Corporation of America, NUMICRO-SDK Datasheet - Page 266

• 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

5.6.4.5
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
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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