NUC120RD1BN Nuvoton Technology Corporation of America, NUC120RD1BN Datasheet - Page 349

• 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: -

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