UG-549
ADuCM310 Hardware Reference Manual
Rev. C | Page 88 of 192
REGISTER DETAILS: FLASH CONTROLLER
Status Register
Address: 0x40018000, Reset: 0x00000000, Name: FEESTA
Table 105. Bit Descriptions for FEESTA
Bits
Bit Name
Description
Reset
Access
[31:14]
RESERVED
Reserved.
0x0
R
[28:27]
ECCREADERRIBUS
Instruction bus ECC error during a read of flash if a system exception is
enabled.
0x0
RC
00: no error (NOERR). Successful read from Flash 1.
01: error detected (ERRDETECTED). 2-bit error detected in one or more
flash locations during a read from Flash 1. The errors are not corrected.
10: error corrected (ERRCORRECTED). 1-bit error detected for one flash
location during read from Flash 1. The error is corrected.
11: 1-bit and 2-bit error detected (ERR1BIT_2BIT). During the read, 1-bit
error and 2-bit errors are detected in Flash 1.
[26:25]
ECCREADERRDBUS
Data bus ECC error during a read of flash if a system exception is enabled.
0x0
RC
00: no error (NOERR). Successful read from Flash 1.
01: error detected (ERRDETECTED). 2-bit error detected in one or more
flash locations during a read from Flash 1. The errors are not corrected.
10: error corrected (ERRCORRECTED). 1-bit error detected for one flash
location during read from Flash 1. The error is corrected.
11: 1-bit and 2-bit error detected (ERR1BIT_2BIT). During the read, 1-bit
error and 2-bit errors are detected in Flash 1.
[24:22]
ECCCOUNTFLASH1
This is a 3-bit counter that reflects the number of 1-bit ECC read errors in
Flash 1 after FEESTA[12:11] = 0x2 and before FEESTA is read. This counter
does not count on ECC 2-bit errors. The counter is cleared when FEESTA is
read by the user.
0x0
R
[21:20]
RESERVED
Reserved.
0x0
R
[19:17]
ECCCOUNTFLASH 0
This is a 3-bit counter that reflects the number of 1-bit ECC read errors in
Flash 0 after FEESTA[10:9] = 0x2 and before FEESTA is read. This counter does
not count on ECC 2-bit errors. The counter is cleared when FEESTA is read
by the user.
0x0
RC
[16:15]
ECCERRSIGN
ECC error during initial signature check.
0x0
R
00: no error (NOERR). Successful flash read operation during the initial
signature check or page signature check.
01: error detected (ERRDETECTED). During the initial signature check, 2-bit
errors are detected and not corrected for at least one flash location.
10: error corrected (ERRCORRECTED). 1-bit error is corrected for one flash
location during a signature command.
11: 1-bit and 2-bit error detected (ERR1BIT_2BIT). During the initial
signature command, 1-bit errors and 2-bit errors are detected on one or
more flash locations.
