TM4C1231E6PZ Datasheet, PDF (553/1173 Pages) Texas Instruments – Tiva™ TM4C1231E6PZ Microcontroller

Tiva^™ TM4C1231E6PZ Microcontroller
Bit/Field
7:5
4
3:2
1
0
Name
reserved
KEY
reserved
DBG1
DBG0
Type
RO
RO
RO
RO
RO
Reset
0x7
1
Description
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
KEY Select
This bit chooses between using the value 0xA442 or 0x71D5 as the
WRKEY value in the FMC/FMC2 register.
Value Description
0 The value 0x71D5 is used as the WRKEY in the FMC/FMC2
register. Writes to the FMC/FMC2 register with a 0xA442 key
are ignored.
1 0xA442 is used as the WRKEY in the FMC/FMC2 register. Writes
to theFMC/FMC2 register with a 0x71D5 key are ignored.
0x3
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
1
Debug Control 1
The DBG1 bit must be 1 and DBG0 must be 0 for debug to be available.
0
Debug Control 0
The DBG1 bit must be 1 and DBG0 must be 0 for debug to be available.
June 12, 2014
553
Texas Instruments-Production Data