M058ZAN Nuvoton Technology Corporation of America, M058ZAN Datasheet - Page 249

• Manufacturer Part Number: M058ZAN
• Description: IC MCU 32BIT 32KB FLASH 33QFN
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro M051™r

Specifications of M058ZAN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 32KB (32K 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 5x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 33-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

SPI Divider Register (SPI_DIVIDER)
NuMicro M051
Register
SPI_DIVIDER
Bits
[31:16]
[15:0]
31
23
15
7
Descriptions
DIVIDER2
DIVIDER
Offset
SPIx_BA+ 0x04 R/W
30
22
14
6
™
29
21
13
5
Series Technical Reference Manual
R/W
Clock Divider 2 Register (master only)
The value in this field is the 2
generate the serial clock on the output SPICLK. The desired frequency is
obtained according to the following equation:
Clock Divider Register (master only)
The value in this field is the frequency divider of the system clock, PCLK, to
generate 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
sclk
sclk
Description
Clock Divider Register (Master Only)
=
=
(
(
DIVIDER
DIVIDER
28
20
12
DIVIDER2[15:8]
4
DIVIDER2[7:0]
DIVIDER[15:8]
DIVIDER[7:0]
- 249 -
f
f
psclk
psclk
2
+
+
1
* )
1
27
19
11
3
* )
2
2
nd
Publication Release Date: Sept 14, 2010
frequency divider of the system clock, PCLK, to
26
18
10
2
25
17
9
1
Revision V1.2
Reset Value
0x0000_0000
24
16
8
0