NUTINY-SDK-M0516 Nuvoton Technology Corporation of America, NUTINY-SDK-M0516 Datasheet - Page 235

• Manufacturer Part Number: NUTINY-SDK-M0516
• Description: BOARD EVAL NUMICRO M051 SERIES
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro M051™r
• Type: MCUr

Specifications of NUTINY-SDK-M0516

• Contents: Board, Cable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: M051™ Series, M052/M054/M058/M0516

™
NuMicro M051
Series Technical Reference Manual
Transmit/Receive Bit Length
The bit length of a transaction word is defined in TX_BIT_LEN bit field (SPI_CNTRL [7:3]). It can
be configured up to 32 bits length in a transfer word for transmitting and receiving.
Burst Mode
SPI controller can switch to burst mode by setting TX_NUM bit field (SPI_CNTRL [9:8]) to 0x01.
In burst mode, SPI can transmit/receive two transactions in one transfer. The SPI burst mode
waveform is shown below:
Figure 6.7-4 Two Transactions in One Transfer (Burst Mode)
LSB First
The LSB bit (SPI_CNTRL [10]) defines the data transmission either from LSB or MSB firstly to
start to transmit/receive data.
Transmit Edge
The TX_NEG bit (SPI_CNTRL [2]) defines the data transmitted out either at negative edge or at
positive edge of serial clock SPICLK.
Receive Edge
The RX_NEG bit (SPI_CNTRL [1]) defines the data received in either at negative edge or at
positive edge of serial clock SPICLK.
Publication Release Date: Sept 14, 2010
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Revision V1.2