TM4C1236E6PM Datasheet, PDF (1194/1234 Pages) Texas Instruments – Tiva Microcontroller

Electrical Characteristics
■ BOR0 or BOR1 bits in the Power-On and Brown-Out Reset Control (PBORCTL) register (see
page 232).
Figure 21-5 on page 1194 shows the relationship between:
■ V_DD, POK, and a BOR0 event
■ V_DD, POK, and a BOR1 event
Figure 21-5. Power and Brown-Out Assertions versus VDD Levels
VDDMIN
P2
P6_RISE
P7
P8
P6_FALL
1
0
1
0
1
0
21.6.3
VDDC Levels
The V_DDC supply has one monitor: the Power-OK (POK). The POK monitor is used to keep the
digital circuitry in reset until the V_DDC power supply is at an acceptable operational level. The digital
Power-On Reset (Digital POR) is only released when the Power-On Reset has deasserted and
all of the Power-OK monitors for each of the supplies indicate that power levels are in operational
ranges. Figure 21-6 on page 1195 shows the relationship between POK and V_DDC.
1194
Texas Instruments-Production Data
June 12, 2014