C8051F545-IQR Silicon Labs, C8051F545-IQR Datasheet - Page 203
C8051F545-IQR
Manufacturer Part Number
C8051F545-IQR
Description
8-bit Microcontrollers - MCU 50 MIPS 8 kB 1 kB SPI UART I2C
Manufacturer
Silicon Labs
Datasheet
1.C8051F546-IMR.pdf
(274 pages)
Specifications of C8051F545-IQR
Rohs
yes
Core
8051
Data Bus Width
8 bit
Processor Series
C8051
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Part Number:
C8051F545-IQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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Values Read
0100 0 0 0 A slave byte was transmitted;
0101 0 X X An illegal STOP or bus error
0010 1 0 X A slave address + R/W was
0001 0 0 X A STOP was detected while
0000 1 0 X A slave byte was received;
0 0 1 A slave byte was transmitted;
0 1 X A Slave byte was transmitted;
1 1 X Lost arbitration as master;
1 1 X Lost arbitration while attempt-
Current SMbus State
NACK received.
ACK received.
error detected.
was detected while a Slave
Transmission was in progress.
received; ACK requested.
slave address + R/W received;
ACK requested.
addressed as a Slave Trans-
mitter or Slave Receiver.
ing a STOP.
ACK requested.
Table 20.4. SMBus Status Decoding
Rev. 1.1
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, Acknowledge received
address
If Read, Load SMB0DAT with
data byte; ACK received address
NACK received address.
If Write, Acknowledge received
address
If Read, Load SMB0DAT with
data byte; ACK received address
NACK received address.
Reschedule failed transfer;
NACK received address.
Clear STO.
No action required (transfer
complete/aborted).
Acknowledge received byte;
Read SMB0DAT.
NACK received byte.
C8051F54x
Values to
Write
0 0 X 0001
0 0 X 0100
0 0 X 0001
0 0 X
0 0 1
0 0 1
0 0 0
0 0 1
0 0 1
0 0 0
1 0 0
0 0 X
0 0 0
0 0 1
0 0 0
0000
0100
0000
0100
0000
1110
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