C8051F331 Silicon Laboratories Inc, C8051F331 Datasheet - Page 143

• Manufacturer Part Number: C8051F331
• Description: IC 8051 MCU 8K FLASH 20MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F33xr

Specifications of C8051F331

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

Table 15.4. SMBus Status Decoding
0010
0010
0001
0000
Values Read
1
1
0
1
0
0
1
1
0
1
1
1
0
1
0
1
X
X
X
X
X
X
X
X
Current SMbus State
Lost arbitration while attempting a
Lost arbitration while attempting a
Lost arbitration due to a detected
Lost arbitration while transmitting
Lost arbitration as master; slave
A slave byte was received; ACK
A STOP was detected while an
A slave address was received;
addressed slave receiver.
address received; ACK
a data byte as master.
repeated START.
ACK requested.
requested.
requested.
STOP.
STOP.
C8051F330/1, C8051F330D
Rev. 1.2
Typical Response Options
do not acknowledge received
Acknowledge received byte;
No action required (transfer
No action required (transfer
Reschedule failed transfer;
Reschedule failed transfer.
Reschedule failed transfer.
Reschedule failed transfer.
Acknowledge received
Acknowledge received
Do not acknowledge
Do not acknowledge
Do not acknowledge
Abort failed transfer.
Abort failed transfer.
complete/aborted).
received address.
received address.
Read SMB0DAT.
Abort transfer.
received byte.
complete).
address.
address.
address.
0
0
0
0
1
0
1
0
0
0
1
0
0
0
1
Written
Values
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
143
1
0
1
0
0
X
X
0
X
X
X
1
0
0
0