M054ZAN Nuvoton Technology Corporation of America, M054ZAN Datasheet - Page 249
M054ZAN
Manufacturer Part Number
M054ZAN
Description
IC MCU 32BIT 16KB FLASH 33QFN
Manufacturer
Nuvoton Technology Corporation of America
Series
NuMicro M051™r
Specifications of M054ZAN
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
16KB (16K 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
-
Available stocks
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Manufacturer
Quantity
Price
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Part Number:
M054ZAN
Manufacturer:
NuvoTon
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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
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