Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsDev KitsEvaluation board

2091

Control Registers

www.ti.com

Table 35-27. DMM Pin Control 5 (DMMPC5) Field Descriptions (continued)

Bit Field Value Description

0 SYNCCLR Sets output state of DMMSYNC pin to logic low. Value in the SYNCCLR bit clears the data

output control register bit to 0 regardless of the current value in the DATAxOUT bit.

User and privilege mode (read):

0 Logic low (output voltage is V

or lower)

1 Logic high (output voltage is V

or higher)

User and privilege mode (write):

0 State of the pin is unchanged

1 Clears the pin to logic low (output voltage is set to V

or lower)

35.3.22 DMM Pin Control 6 (DMMPC6)

These bits configure the pins in push-pull or open-drain functionality. If configured to be open-drain, the

module only drives a logic low level on the pin. An external pull-up resistor needs to be connected to the

pin to pull it high when the pin is in high-impedance mode.

Figure 35-28. DMM Pin Control 6 (DMMPC6) [offset = 84h]

31 24

Reserved

R-0

23 19 18 17 16

Reserved ENAPDR DATA15PDR DATA14PDR

R-0 R/W-0 R/W-0 R/W-0

15 14 13 12 11 10 9 8

DATA13PDR DATA12PDR DATA11PDR DATA10PDR DATA9PDR DATA8PDR DATA7PDR DATA6PDR

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

7 6 5 4 3 2 1 0

DATA5PDR DATA4PDR DATA3PDR DATA2PDR DATA1PDR DATA0PDR CLKPDR SYNCPDR

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 35-28. DMM Pin Control 6 (DMMPC6) Field Descriptions

Bit Field Value Description

31-19 Reserved 0 Reads returns 0. Writes have no effect.

18 ENAPDR Open Drain enable. Enables open drain functionality if the pin is configured as GIO output

(DMMPC0[18]=0; DMMPC1[18]=1). If the pin is configured as functional pin (DMMPC0[18]=1), the

open drain functionality is disabled.

User and privilege mode (read):

0 Pin behaves as normal push/pull pin

1 Pin operates in open drain mode

User and privilege mode (write):

0 Configures pin as push/pull

1 Configures pin as open drain

1866

Data Modification Module (DMM) SPNU562–May 2014

Submit Documentation Feedback