NUC130RE3CN Nuvoton Technology Corporation of America, NUC130RE3CN Datasheet - Page 389

• Manufacturer Part Number: NUC130RE3CN
• Description: IC MCU 32BIT 128KB FLASH 64LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™ NUC100r

Specifications of NUC130RE3CN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 49
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 16K 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

NuMicro™ NUC130/NUC140 Technical Reference Manual
The combination Prop_Seg = 1 and Phase_Seg1 = Phase_Seg2 = SJW = 4 allows the largest
possible oscillator tolerance of 1.58%. This combination with a Propagation Time Segment of
only 10% of the bit time is not suitable for short bit times; it can be used for bit rates of up to 125
kBit/s (bit time = 8 μs) with a bus length of 40 m.
5.13.6.10.5 Configuring the CAN Protocol Controller
In most CAN implementations and also in the C_CAN, the bit timing configuration is
programmed in two register bytes. The sum of Prop_Seg and Phase_Seg1 (as TSEG1) is
combined with Phase_Seg2 (as TSEG2) in one byte, SJW and BRP are combined in the other
byte .
In these bit timing registers, the four components TSEG1, TSEG2, SJW, and BRP have to be
programmed to a numerical value that is one less than its functional value. Therefore, instead of
values in the range of [1..n], values in the range of [0..n-1] are programmed. That way, e.g. SJW
(functional range of [1..4]) is represented by only two bits.
Therefore the length of the bit time is (programmed values) [TSEG1 + TSEG2 + 3] t q or
(functional values) [Sync_Seg + Prop_Seg + Phase_Seg1 + Phase_Seg2] t q .
Publication Release Date: June 14, 2011
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Revision V2.01