NUC140RD2CN Nuvoton Technology Corporation of America, NUC140RD2CN Datasheet - Page 228

• Manufacturer Part Number: NUC140RD2CN
• Description: IC MCU 32BIT 64KB FLASH 64LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™ NUC100r

Specifications of NUC140RD2CN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, LIN, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• 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: 64-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5.7.4.5
The Capture 0 and PWM 0 share one timer that included in PWM 0; and the Capture 1 and PWM
1 share another timer, and etc. The capture always latches PWM-counter to CRLRx when input
channel has a rising transition and latches PWM-counter to CFLRx when input channel has a
falling transition. Capture channel 0 interrupt is programmable by setting CCR0[1] (Rising latch
Interrupt enable) and CCR0[2] (Falling latch Interrupt enable) to decide the condition of interrupt
occur. Capture channel 1 has the same feature by setting CCR0[17] and CCR0[18], and etc.
Whenever the Capture controller issues a capture interrupt, the corresponding PWM counter will
be reloaded with CNRx at this moment. Note that the corresponding GPIO pins must be
configured as capture function (disable POE and enable CAPENR) for the corresponding capture
channel.
At this case, the CNR is 8:
1. The PWM counter will be reloaded with CNRx when a capture interrupt flag (CAPIFx) is
2. The channel low pulse width is (CNR + 1 - CRLR).
3. The channel high pulse width is (CNR + 1 - CFLR).
Capture Operation
NuMicro™ NUC130/NUC140 Technical Reference Manual
set.
Note: X=0~3
Capture Input x
PWM Counter
CAPCHxEN
CRL_IEx
CFL_IEx
CRLRIx
CAPIFx
CFLRIx
CRLRx
CFLRx
Figure 5-46 Capture Operation Timing
Set by H/W
Set by H/W
3
2
1
- 228 -
8
1
Reload
(If CNRx = 8)
Clear by S/W
Clear by S/W
7
Set by H/W
6
Publication Release Date: June 14, 2011
5
8
Reload
5
Clear by S/W
7
No reload due to
no CAPIFx
6
7
5
Revision V2.01
4