C8051F305-GMR Silicon Laboratories Inc, C8051F305-GMR Datasheet - Page 128

• Manufacturer Part Number: C8051F305-GMR
• Description: IC 8051 MCU 2K FLASH 11QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F30xr

Specifications of C8051F305-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: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 11-VQFN
• For Use With: 336-1444 - ADAPTER PROGRAM TOOLSTICK F300
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

C8051F300/1/2/3/4/5
128
1000
0100
0101
Values Read
1
0
0
0
0
X
0
0
0
1
Table 13.4. SMBus Status Decoding (Continued)
X A master data byte was received;
X A Slave byte was transmitted;
X An illegal STOP or bus error was
0 A slave byte was transmitted;
1 A slave byte was transmitted;
ACK requested.
NACK received.
ACK received.
error detected.
detected while a Slave Transmis-
sion was in progress.
Current SMbus State
Rev. 2.9
Acknowledge received byte;
Read SMB0DAT.
Send NACK to indicate last
byte, and send STOP.
Send NACK to indicate last
byte, and send STOP fol-
lowed by START.
Send ACK followed by
repeated START.
Send NACK to indicate last
byte, and send repeated
START.
Send ACK and switch to
Master Transmitter Mode
(write to SMB0DAT before
clearing SI).
Send NACK and switch to
Master Transmitter Mode
(write to SMB0DAT before
clearing SI).
No action required (expect-
ing STOP condition).
Load SMB0DAT with next
data byte to transmit.
No action required (expect-
ing Master to end transfer).
Clear STO.
Typical Response Options
0
0
1
1
1
0
0
0
0
0
0
Written
Values
0
1
1
0
0
0
0
0
0
0
0
X
X
X
X
1
0
0
1
0
1
0