NUC130LE3CN Nuvoton Technology Corporation of America, NUC130LE3CN Datasheet - Page 297

• Manufacturer Part Number: NUC130LE3CN
• Description: IC MCU 32BIT 128KB FLASH 48LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™ NUC100r

Specifications of NUC130LE3CN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: CAN, I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 35
• 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: 48-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

SPI Divider Register (SPI_DIVIDER)
Register
SPI_DIVIDER SPIx_BA+0x04
Bits
[31:16]
[15:0]
31
23
15
7
NuMicro™ NUC130/NUC140 Technical Reference Manual
Offset
Descriptions
DIVIDER2
DIVIDER
30
22
14
6
R/W
R/W
Clock Divider 2 Register (master only)
The value in this field is the 2
output SPICLK. The desired frequency is obtained according to the following equation:
If VARCLK_EN is cleared to 0, this setting is unmeaning.
Clock Divider Register (master only)
The value in this field is the frequency divider for generating the serial clock on the
output SPICLK. The desired frequency is obtained according to the following equation:
In slave mode, the period of SPI clock driven by a master shall equal or over 5 times
the period of PCLK. In other words, the maximum frequency of SPI clock is the fifth of
the frequency of slave’s PCLK.
f
f
29
21
13
5
sclk
sclk
=
=
Description
Clock Divider Register (Master Only)
(
(
DIVIDER
DIVIDER
28
20
12
f
f
4
DIVIDER2[15:8]
DIVIDER2[7:0]
DIVIDER[15:8]
DIVIDER[7:0]
- 297 -
pclk
pclk
2
+
+
1
1
* )
* )
2
2
nd
frequency divider for generating the serial clock on the
27
19
11
3
Publication Release Date: June 14, 2011
26
18
10
2
25
17
9
1
Revision V2.01
Reset Value
0x0000_0000
24
16
8
0