C8051F902-GM Silicon Laboratories Inc, C8051F902-GM Datasheet - Page 246

• Manufacturer Part Number: C8051F902-GM
• Description: IC MCU 8BIT 8KB FLASH 24QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F9xxr

Specifications of C8051F902-GM

• Program Memory Type: FLASH
• Program Memory Size: 8KB (8K x 8)
• Package / Case: 24-QFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 0.9 V ~ 3.6 V
• Data Converters: A/D 15x10/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F9x
• Core: 8051
• Data Ram Size: 768 B
• Interface Type: UART
• Maximum Clock Frequency: 25 MHz
• Number Of Timers: 4
• Operating Supply Voltage: 0.9 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F912DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit
• Package: 24QFN EP
• Device Core: 8051
• Family Name: C8051F90x
• Maximum Speed: 25 MHz
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1848-5

C8051F91x-C8051F90x
Table 22.6. SMBus Status Decoding With Hardware ACK Generation Enabled (EHACK = 1)
246
0100
0101 0 X X
0010
0001
0000 0
0010 0
0001 0
0000 0
Values Read
0
0
0
0
0
0
0
0
0
1 X
0 X
1 X
0 X
1 X
0 X A slave byte was received.
1 X
1 X
1 X
0
1
Current SMbus State
A slave byte was transmitted;
NACK received.
A slave byte was transmitted;
ACK received.
A Slave byte was transmitted;
error detected.
An illegal STOP or bus error
was detected while a Slave
Transmission was in progress.
A slave address + R/W was
received; ACK sent.
Lost arbitration as master;
slave address + R/W received;
ACK sent.
A STOP was detected while
addressed as a Slave Trans-
mitter or Slave Receiver.
Lost arbitration while attempt-
ing a STOP.
Lost arbitration while attempt-
ing a repeated START.
Lost arbitration due to a
detected STOP.
Lost arbitration while transmit-
ting a data byte as master.
(Continued)
Rev. 1.0
Typical Response Options
No action required (expecting
STOP condition).
Load SMB0DAT with next data
byte to transmit.
No action required (expecting
Master to end transfer).
Clear STO.
If Write, Set ACK for first data
byte.
If Read, Load SMB0DAT with
data byte
If Write, Set ACK for first data
byte.
If Read, Load SMB0DAT with
data byte
Reschedule failed transfer
Clear STO.
No action required (transfer
complete/aborted).
Set ACK for next data byte;
Read SMB0DAT.
Set NACK for next data byte;
Read SMB0DAT.
Abort failed transfer.
Reschedule failed transfer.
Abort failed transfer.
Reschedule failed transfer.
Abort failed transfer.
Reschedule failed transfer.
Values to
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
0
1
0
1
Write
0 X 0001
0 X 0100
0 X 0001
0 X
0 1
0 X 0100
0 1
0 X 0100
0 X
0 X
0 0
0 1
0 0
0 X
0 X
0 X
0 X
0 X
0 X
0000
0000
0000
0000
1110
1110
1110
1110
-
-
-
-
-
-