NUC120LD2BN Nuvoton Technology Corporation of America, NUC120LD2BN Datasheet - Page 547

• Manufacturer Part Number: NUC120LD2BN
• Description: IC MCU 32BIT 64KB FLASH 48LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™r

Specifications of NUC120LD2BN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, IrDA, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, LVD, POR, PS2, PWM, WDT
• Number Of I /o: 31
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Insert Idle Cycle
When EBI accessing continuously, there may occur bus conflict if the device access time is much
slow with system operating. EBI controller supply additional idle cycle to solve this problem.
During idle cycle, all control signals of EBI are inactive. Figure 5-113 show idle cycle as below:
There are two conditions that EBI can insert idle cycle by timing control:
By setting ExtIW2X, and ExtIR2R of register EXTIME, the time of idle cycle can be specified from
0~15 MCLK.
1.
2.
After write access
After read access and before next read access
NuMicro™ NUC100 Series Technical Reference Manual
Figure 5-113 Timing Control Waveform for Insert Idle Cycle
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Publication Release Date: Oct 22, 2010
Revision V1.06