TOOLSTICK381DC Silicon Laboratories Inc, TOOLSTICK381DC Datasheet - Page 27

• Manufacturer Part Number: TOOLSTICK381DC
• Description: TOOLSTICK DAUGHTER CARD
• Manufacturer: Silicon Laboratories Inc
• Series: ToolStickr

Specifications of TOOLSTICK381DC

• Processor To Be Evaluated: C8051F380
• Processor Series: C8051F38x
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 336-2020

27

SMBus Addressing
The SMBus hardware has the capability to automatically recognize
incoming slave addresses and send an ACK without software
intervention



SMBus Slave Address register
SMBus Slave Address Mask Registers
Will recognize the General Call Address (0x00)
Address (SMB0ADR) = 0x34
Mask (SMB0ADM) = 0x7E
•Programmed device address
•Addresses are 7 bits
•A 1 in the bit position enables the comparison with the incoming address
•A 0 in the bit position is treated as a don’t care
Accepted match = 0x34
Accepted match = 0x35
1
0
0
0
1
1
1
1
1
1
1
1
1
0
0
0
1
1
1
1
1
0
0
0
0
0
0
1
EHACK
x
x
GC
Comparisons enabled
Don’t care