Texas Instruments TMS320C6745 DSP - NAND Flash N ECC Register (Nandfnecc); NAND Flash N ECC Register (Nandfnecc) Field Descriptions

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SPRUH91D–March 2013–Revised September 2016
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External Memory Interface A (EMIFA)
18.4.14 NAND Flash n ECC Registers (NANDF1ECC-NANDF4ECC)
The NAND Flash n ECC register (NANDFnECC) is shown in Figure 18-44 and described in Table 18-62.
For 8-bit NAND Flash, the P1 to P4 bits are column parities; the P8 to P2048 bits are row parities. For
16-bit NAND Flash, the P1 to P8 bits are column parities; the P16 to P2048 bits are row parities.
Figure 18-44. NAND Flash n ECC Register (NANDFnECC)
31 28 27 26 25 24
Reserved P2048O P1024O P512O P256O
R-0 R-0 R-0 R-0 R-0
23 22 21 20 19 18 17 16
P128O P64O P32O P16O P8O P4O P2O P1O
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
15 12 11 10 9 8
Reserved P2048E P1024E P512E P256E
R-0 R-0 R-0 R-0 R-0
7 6 5 4 3 2 1 0
P128E P64E P32E P16E P8E P4E P2E P1E
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
LEGEND: R = Read only; -n = value after reset
Table 18-62. NAND Flash n ECC Register (NANDFnECC) Field Descriptions
Bit Field Value Description
31-28 Reserved 0 Reserved
27 P2048O 0-1 ECC code calculated while reading/writing NAND Flash.
26 P1024O 0-1 ECC code calculated while reading/writing NAND Flash.
25 P512O 0-1 ECC code calculated while reading/writing NAND Flash.
24 P256O 0-1 ECC code calculated while reading/writing NAND Flash.
23 P128O 0-1 ECC code calculated while reading/writing NAND Flash.
22 P64O 0-1 ECC code calculated while reading/writing NAND Flash.
21 P32O 0-1 ECC code calculated while reading/writing NAND Flash.
20 P16O 0-1 ECC code calculated while reading/writing NAND Flash.
19 P8O 0-1 ECC code calculated while reading/writing NAND Flash.
18 P4O 0-1 ECC code calculated while reading/writing NAND Flash.
17 P2O 0-1 ECC code calculated while reading/writing NAND Flash.
16 P1O 0-1 ECC code calculated while reading/writing NAND Flash.
15-12 Reserved 0 Reserved
11 P2948E 0-1 ECC code calculated while reading/writing NAND Flash.
10 P102E 0-1 ECC code calculated while reading/writing NAND Flash.
9 P512E 0-1 ECC code calculated while reading/writing NAND Flash.
8 P256E 0-1 ECC code calculated while reading/writing NAND Flash.
7 P128E 0-1 ECC code calculated while reading/writing NAND Flash.
6 P64E 0-1 ECC code calculated while reading/writing NAND Flash.
5 P32E 0-1 ECC code calculated while reading/writing NAND Flash.
4 P15E 0-1 ECC code calculated while reading/writing NAND Flash.
3 P8E 0-1 ECC code calculated while reading/writing NAND Flash.
2 P4E 0-1 ECC code calculated while reading/writing NAND Flash.
1 P2E 0-1 ECC code calculated while reading/writing NAND Flash.
0 P1E 0-1 ECC code calculated while reading/writing NAND Flash.