Texas Instruments TMS570LC4357

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2149
SPNU563A–March 2018
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Data Modification Module (DMM)
Table 36-27. 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 SYNCOUT bit to 0, regardless of the current value in the SYNCOUT bit.
User and privilege mode (read):
0 Logic low (output voltage is V
OL
or lower).
1 Logic high (output voltage is V
OH
or higher).
Privilege mode (write):
0 State of the pin is unchanged.
1 Clears the pin to logic low (output voltage is set to V
OL
or lower).
36.3.22 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 36-28. DMM Pin Control 6 (DMMPC6) [offset = 84h]
31 24
Reserved
R-0
23 19 18 17 16
Reserved ENAPDR DATA15PDR DATA14PDR
R-0 R/WP-0 R/WP-0 R/WP-0
15 14 13 12 11 10 9 8
DATA13PDR DATA12PDR DATA11PDR DATA10PDR DATA9PDR DATA8PDR DATA7PDR DATA6PDR
R/WP-0 R/WP-0 R/WP-0 R/WP-0 R/WP-0 R/WP-0 R/WP-0 R/WP-0
7 6 5 4 3 2 1 0
DATA5PDR DATA4PDR DATA3PDR DATA2PDR DATA1PDR DATA0PDR CLKPDR SYNCPDR
R/WP-0 R/WP-0 R/WP-0 R/WP-0 R/WP-0 R/WP-0 R/WP-0 R/WP-0
LEGEND: R/W = Read/Write; R = Read only; WP = Write in privileged mode only; -n = value after reset
Table 36-28. 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 a 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.
Privilege mode (write):
0 Configures pin as push/pull.
1 Configures pin as open drain.