Dual Mode Control Configuration

Name:
DUALCTRL
Offset:
0x01
Reset:
0x00
Access:
-
Bit76543210
SDAHOLD[1:0]FMPENENABLE
AccessR/WR/WR/WR/W
Reset0000

Bits 3:2 – SDAHOLD[1:0]: SDA Hold Time

SDA Hold Time

These bits select the SDA hold time for the TWI Client.

This bit field is ignored when the dual control is disabled.

ValueNameDescription
0x0 OFF Hold time OFF
0x1 50NS Short hold time
0x2 300NS Meets the SMBus 2.0 specifications under typical conditions
0x3 500NS Meets the SMBus 2.0 specifications across all corners

Bit 1 – FMPEN: FM Plus Enable

FM Plus Enable

This bit selects the 1 MHz bus speed for the TWI Client. This bit is ignored when dual control is disabled.

Bit 0 – ENABLE: Dual Control Enable

Dual Control Enable

Writing this bit to ‘1’ enables the TWI dual control.