NUMICRO-SDK Nuvoton Technology Corporation of America, NUMICRO-SDK Datasheet - Page 349

• 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

NuMicro™ NUC100 Series Technical Reference Manual
Two Bit Transfer Mode
This SPI controller also supports two-bit transfer mode when enabling the TWOB bit
(SPI_CNTRL[22]). When the TWOB bit is enabled, it can transmit and receives two-bit serial data
st
simultaneously. The 1
bit through the MOSIx0 and MISOx0 pins to transmit the data from the
nd
SPI_TX0 register and receive the data into the SPI_RX0 register. The 2
bit through the MOSIx1
and MISOx1 pins to transmit the data from the SPI_TX1 register and receive the data into the
SPI_RX1 register. Note that when enable the TWOB bit, the setting of TX_NUM must be
programmed as 0x00 only.
Figure 5-57 Two Bits Transfer Mode
Publication Release Date: Oct 22, 2010
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Revision V1.06