C8051F045R Silicon Labs, C8051F045R Datasheet - Page 253
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C8051F045R
Manufacturer Part Number
C8051F045R
Description
8-bit Microcontrollers - MCU 25 MIPS 64KB 10ADC
Manufacturer
Silicon Labs
Datasheet
1.C8051F044R.pdf
(328 pages)
Specifications of C8051F045R
Product Category
8-bit Microcontrollers - MCU
Core
8051
Data Bus Width
8 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
64 KB
Data Ram Size
4.25 KB
On-chip Adc
Yes
Operating Supply Voltage
2.7 V to 3.6 V
Package / Case
TQFP-64
Mounting Style
SMD/SMT
A/d Bit Size
10 bit
A/d Channels Available
13
Data Rom Size
64 KB
Interface Type
CAN, SMBus, SPI, UART
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
32
Number Of Timers
16 bit
Processor Series
C8051
Program Memory Type
Flash
Factory Pack Quantity
500
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
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Mode
Status
Code
0xA0
0xA8
0xB0
0xB8
0xC0
0xC8
0xD0
0x60
0x68
0x70
0x78
0x80
0x88
0x90
0x98
0x00
0xF8
Table 19.1. SMB0STA Status Codes and States (Continued)
Own slave address + W received. ACK trans-
mitted.
Arbitration lost in sending SLA + R/W as mas-
ter. Own address + W received. ACK transmit-
ted.
General call address received. ACK transmit-
ted.
Arbitration lost in sending SLA + R/W as mas-
ter. General call address received. ACK trans-
mitted.
Data byte received. ACK transmitted.
Data byte received. NACK transmitted.
Data byte received after general call address.
ACK transmitted.
Data byte received after general call address.
NACK transmitted.
STOP or repeated START received.
Own address + R received. ACK transmitted.
Arbitration lost in transmitting SLA + R/W as
master. Own address + R received. ACK
transmitted.
Data byte transmitted. ACK received.
Data byte transmitted. NACK received.
Last data byte transmitted (AA=0). ACK
received.
SCL Clock High Timer per SMB0CR timed out
Bus Error (illegal START or STOP)
Idle
SMBus State
Rev. 1.5
C8051F040/1/2/3/4/5/6/7
Wait for data.
Save current data for retry when bus is
free. Wait for data.
Wait for data.
Save current data for retry when bus is
free.
Read SMB0DAT. Wait for next byte or
STOP.
Set STO to reset SMBus.
Read SMB0DAT. Wait for next byte or
STOP.
Set STO to reset SMBus.
No action necessary.
Load SMB0DAT with data to transmit.
Save current data for retry when bus is
free. Load SMB0DAT with data to trans-
mit.
Load SMB0DAT with data to transmit.
Wait for STOP.
Set STO to reset SMBus.
Set STO to reset SMBus.
Set STO to reset SMBus.
State does not set SI.
Typical Action
253
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