M052LAN Nuvoton Technology Corporation of America, M052LAN Datasheet - Page 254

• Manufacturer Part Number: M052LAN
• Description: IC MCU 32BIT 8KB FLASH 48LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro M051™r

Specifications of M052LAN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 40
• Program Memory Size: 8KB (8K 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: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

SPI Variable Clock Pattern Register (SPI_VARCLK)
Register
SPI_VARCLK
Bits
[31:0]
31
23
15
7
NuMicro M051
Descriptions
VARCLK
Offset
SPIx_BA+ 0x34 R/W
30
22
14
6
29
21
13
5
R/W
Variable Clock Pattern
The value in this field is the frequency patterns of the SPI clock. If the bit
pattern of VARCLK is ‘0’, the output frequency of SPICLK is according the
value of DIVIDER. If the bit patterns of VARCLK are ‘1’, the output frequency of
SPICLK is according the value of DIVIDER2. Refer to register SPI_DIVIDER.
Refer to Figure 6.7-7 for Variable Clock timing diagram.
Note: It is used for CLKP = 0 only.
™
Description
Variable Clock Pattern Register
Series Technical Reference Manual
28
20
12
VARCLK[31:24]
VARCLK[23:16]
4
VARCLK[15:8]
VARCLK[7:0]
- 254 -
27
19
11
3
Publication Release Date: Sep 14, 2010
26
18
10
2
25
17
9
1
Revision V1.2
Reset Value
0x007F_FF87
24
16
8
0