M0516ZAN Nuvoton Technology Corporation of America, M0516ZAN Datasheet - Page 172

• 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: -

I2C STATUS REGISTER (I2CSTATUS )
Register
I2CSTATUS I2C_BA+0x0C
Bits
[31:8]
[7:0]
31
23
15
7
NuMicro M051
Descriptions
Reserved
I2CSTATUS
Offset
30
22
14
6
R/W Description
R/W I2C STATUS Register
Reserved
I2C Status Register
The status register of I2C:
The three least significant bits are always 0. The five most significant bits
contain the status code. There are 26 possible status codes. When
I2CSTATUS contains F8H, no serial interrupt is requested. All other
I2CSTATUS values correspond to defined I2C states. When each of these
states is entered, a status interrupt is requested (SI = 1). A valid status code
is present in I2CSTATUS one cycle after SI is set by hardware and is still
present one cycle after SI has been reset by software. In addition, states
00H stands for a Bus Error. A Bus Error occurs when a START or STOP
condition is present at an illegal position in the formation frame. Example of
illegal position are during the serial transfer of an address byte, a data byte
or an acknowledge bit.
29
21
13
5
™
Series Technical Reference Manual
I2CSTATUS[7:0]
28
20
12
4
Reserved
Reserved
Reserved
- 172 -
27
19
11
3
Publication Release Date: Sep 14, 2010
26
18
10
2
25
17
9
1
Revision V1.2
Reset Value
0x0000_0000
24
16
8
0