C8051F040DK Silicon Laboratories Inc, C8051F040DK Datasheet - Page 252

• Manufacturer Part Number: C8051F040DK
• Description: DEV KIT FOR F040/F041/F042/F043
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F040DK

• Contents: Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
• Processor To Be Evaluated: C8051F04x
• Interface Type: USB
• Silicon Manufacturer: Silicon Labs
• Core Architecture: 8051
• Silicon Core Number: C8051F040
• Silicon Family Name: C8051F04x
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Silicon Laboratories C8051 F040, 041, 042, 043 MCUs
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1205

C8051F040/1/2/3/4/5/6/7
252
Mode
Status
Code
0x08
0x10
0x18
0x20
0x28
0x30
0x38
0x40
0x48
0x50
0x58
START condition transmitted.
Repeated START condition transmitted.
Slave Address + W transmitted. ACK
received.
Slave Address + W transmitted. NACK
received.
Data byte transmitted. ACK received.
Data byte transmitted. NACK received.
Arbitration Lost.
Slave Address + R transmitted. ACK received.
Slave Address + R transmitted. NACK
received.
Data byte received. ACK transmitted.
Data byte received. NACK transmitted.
Table 19.1. SMB0STA Status Codes and States
SMBus State
Rev. 1.5
Load SMB0DAT with Slave Address +
R/W. Clear STA.
Load SMB0DAT with Slave Address +
R/W. Clear STA.
Load SMB0DAT with data to be transmit-
ted.
Acknowledge poll to retry. Set STO +
STA.
1) Load SMB0DAT with next byte, OR
2) Set STO, OR
3) Clear STO then set STA for repeated
START.
1) Retry transfer OR
2) Set STO.
Save current data.
If only receiving one byte, clear AA (send
NACK after received byte). Wait for
received data.
Acknowledge poll to retry. Set STO +
STA.
Read SMB0DAT. Wait for next byte. If
next byte is last byte, clear AA.
Set STO.
Typical Action