C8051F301-GMR Silicon Laboratories Inc, C8051F301-GMR Datasheet - Page 127

IC 8051 MCU 8K FLASH 11QFN

C8051F301-GMR

Manufacturer Part Number
C8051F301-GMR
Description
IC 8051 MCU 8K FLASH 11QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F30xr
Datasheets

Specifications of C8051F301-GMR

Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
8
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
11-VQFN
Package
11QFN EP
Device Core
8051
Family Name
C8051F30x
Maximum Speed
25 MHz
Operating Supply Voltage
3.3 V
Data Bus Width
8 Bit
Number Of Programmable I/os
8
Interface Type
I2C/SMBus/UART
Number Of Timers
3
For Use With
336-1444 - ADAPTER PROGRAM TOOLSTICK F300336-1319 - REFERENCE DESIGN STEPPER MOTOR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-

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13.6. SMBus Status Decoding
The current SMBus status can be easily decoded using the SMB0CN register. In the table below, STATUS
VECTOR refers to the four upper bits of SMB0CN: MASTER, TXMODE, STA, and STO. Note that the
shown response options are only the typical responses; application-specific procedures are allowed as
long as they conform with the SMBus specification. Highlighted responses are allowed but do not conform
to the SMBus specification.
1110
1100
Values Read
0
0
0
0
0
0
X A master START was generated. Load slave address + R/W
0 A master data or address byte
1 A master data or address byte
was transmitted; NACK received.
was transmitted; ACK received.
Table 13.4. SMBus Status Decoding
Current SMbus State
Rev. 2.9
into SMB0DAT.
Set STA to restart transfer.
Abort transfer.
Load next data byte into
SMB0DAT
End transfer with STOP
End transfer with STOP and
start another transfer.
Send repeated START
Switch to Master Receiver
Mode (clear SI without writ-
ing new data to SMB0DAT).
Typical Response Options
C8051F300/1/2/3/4/5
0
1
0
0
0
1
1
0
Written
Values
0
0
1
0
1
1
0
0
X
X
X
X
X
X
X
X
127

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