C8051F850-C-GM Datasheet, PDF (266/328 Pages) Silicon Laboratories – Low-Cost 8-bit MCU Family with up to 8 kB of Flash

Table 24.7. SMB0CF Register Bit Descriptions
Bit
Name
Function
1:0
SMBCS SMBus0 Clock Source Selection.
These two bits select the SMBus0 clock source, which is used to generate the SMBus0
bit rate. See the SMBus clock timing section for additional details.
00: Timer 0 Overflow
01: Timer 1 Overflow
10: Timer 2 High Byte Overflow
11: Timer 2 Low Byte Overflow
241
Rev. 1.0