M054ZAN Nuvoton Technology Corporation of America, M054ZAN Datasheet - Page 268
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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Part Number
Manufacturer
Quantity
Price
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Part Number:
M054ZAN
Manufacturer:
NuvoTon
Quantity:
4 650
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6.9.4
Watchdog Timer Control Register (WTCR)
R : read only, W : write only, R/W : both read and write
Note: All bits in this register are write-protected. To program it needs an open lock sequence, by sequentially writing “59h”,
“16h”, and “88h” to register REGWRPROT at address GCR_BA + 0x100
Register
WDT_BA = 0x4000_4000
WTCR
Register
WTCR
Bits
[31:11]
[10:8]
WDT Controller Registers Map
WTE
31
23
15
7
NuMicro M051
Offset
WDT_BA+00
Offset
WDT_BA+000
Descriptions
Reserved
WTIS
WTIE
30
22
14
6
Reserved
WTWKF
R/W
R/W
R/W
R/W
29
21
13
5
Reserved
Watchdog Timer Interval Select (write protection bits)
These three bits select the timeout interval for the Watchdog timer.
Description
Description
Watchdog Timer Control Register
™
WTIS
Watchdog Timer Control Register
000
Series Technical Reference Manual
WTWKE
28
20
12
4
Timeout Interval
- 268 -
Reserved
Reserved
2
Selection
4
* T
WDT
WTIF
27
19
11
3
Publication Release Date: Sep 14, 2010
(2
Interrupt Period
4
+ 1024) * T
WTRF
26
18
10
2
WDT
WTRE
WTIS
WTR Timeout Interval
(WDT_CLK=12 MHz)
25
17
9
1
1.33 us ~ 86.67 us
Revision V1.2
Reset Value
0x0000_0700
Reset Value
0x0000_0700
WTR
24
16
8
0
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