M0516ZAN Nuvoton Technology Corporation of America, M0516ZAN Datasheet - Page 121

• Manufacturer Part Number: M0516ZAN
• Description: IC MCU 32BIT 64KB FLASH 33QFN
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro M051™r

Specifications of M0516ZAN

• 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: 24
• Program Memory Size: 64KB (64K 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: -

Clock status Register （CLKSTATUS）
NuMicro M051
These bits of this register are used to monitor if the chip clock source stable or not, and if clock
switching failed.
CLK_SW_FAIL
Bits
[31:8]
[7]
[6:5]
[4]
Register
CLKSTATUS
31
23
15
7
Descriptions
Reserved
CLK_SW_FAIL
Reserved
OSC22M_STB
Offset
CLK_BA+0C R/W
30
22
14
6
Reserved
R/W
™
-
Clock switch fail flag
1 = Clock switch if fail
0 = Clock switch if success
This bit will be set when target switch clock source is not stable.
Write 1 to clear this bit to zero.
-
OSC22M (Internal 22.1184 MHz) clock source stable flag (Read Only)
1 = OSC22M clock is stable
0 = OSC22M clock is not stable or disable
29
21
13
Series Technical Reference Manual
5
OSC22M_STB OSC10K_STB
Description
Clock status monitor Register
28
20
12
4
- 121 -
Reserved
Reserved
Reserved
27
19
11
3
Publication Release Date: Sept 14, 2010
PLL_STB
26
18
10
2
Reserved
25
17
9
1
Revision V1.2
XTL12M_STB
Reset Value
0x0000_00X
X
24
16
8
0