TM4C123BE6PZ_15 Datasheet, PDF (561/1310 Pages) Texas Instruments – Tiva TM4C123BE6PZ Microcontroller

Tiva^™ TM4C123BE6PZ Microcontroller
Register 18: EEPROM Done Status (EEDONE), offset 0x018
The EEDONE register indicates the successful or failed completion of a write using the EERDWR
or EERDWRINC register, protection set using the EEPROT register, password registered using the
EEPASS register, copy buffer erase or program retry using the EESUPP register, or a debug mass
erase using the EEDBGME register. The EEDONE register can be used with the EEINT register to
generate an interrupt to report the status. The normal usage is to poll the EEDONE register or read
the register after an interrupt is triggered. When the EEDONE bit 0 is set, then the operation is still
in progress. When the EEDONE bit 0 is clear, then the value of EEDONE indicates the completion
status. If EEDONE==0, then the write completed successfully. If EEDONE!=0, then an error occurred
and the source of the error is given by the set bit(s). If an error occurs, corrective action may be
taken as explained on page 563.
EEPROM Done Status (EEDONE)
Base 0x400A.F000
Offset 0x018
Type RO, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
reserved
WRBUSY NOPERM WKCOPY WKERASE reserved WORKING
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31:6
5
Name
reserved
WRBUSY
Type
RO
RO
Reset
0x0
0
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.
Write Busy
Value Description
0 No error
1 An attempt to access the EEPROM was made while a write was
in progress.
4
NOPERM
RO
0
Write Without Permission
Value Description
0 No error
1 An attempt was made to write without permission. This error
can result because the block is locked, the write violates the
programmed access protection, or when an attempt is made to
write a password when the password has already been written.
June 12, 2014
561
Texas Instruments-Production Data