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

This bit field selects the SDA hold time for the TWI client. See also the Electrical Characteristics section. This bit field is ignored if the Dual mode is not enabled.

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 across all corners

Bit 1 – FMPEN: FM Plus Enable

FM Plus Enable

Writing a ‘1’ to this bit selects the 1 MHz bus speed for the TWI client. This bit is ignored if the Dual mode is not enabled.

ValueNameDescription
0 OFF Operating in Standard mode or Fast mode
1 ON Operating in Fast mode Plus

Bit 0 – ENABLE: Dual Control Enable

Dual Control Enable

Writing a ‘1’ to this bit will enable the Dual mode configuration.