Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsDev KitsEvaluation board

551

552

553

554

555

556

557

558

559

560

SECDED

www.ti.com

Table 7-1. ECC Encoding

9 9 9 8 8 8 8 8 8 8 8 8 8 7 7 7 7 7 7 7 7 7 7 6 6 6 6 6 6

2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4

Participating Address Bits

ADDR_MSW_LSW E 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0

C 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3

1FC0007F_00FFFF00 7 x x x x x x x x x x x x x x

_FF0000FF

3FFF80_FF0000FF 6 x x x x x x x x x x x x x x x

_FF0000FF

1FC07F80_FF00FF00 5 x x x x x x x x x x x x x x x

_FF00FF00

FC19F83_C0FCC0FC 4 x x x x x x x x x x x x x x x x

_C0FCC0FC

13C6A78D_38E338E3 3 x x x x x x x x x x x x x x x x

_38E338E3

14DAA9B5_A699A699 2 x x x x x x x x x x x x x x x x

_A699A699

1D68BAD1_15571557 1 x x x x x x x x x x x x x x x x

_15571557

A7554EA_B4D1B4D1 0 x x x x x x x x x x x x x x x

_4B2E4B2E

Participating Data Bits

6 6 6 6 5 5 5 5 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 2 2 2

3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7

x x x x x x x x x x x x x x x x x x x x x

x x x x x x x x x x x x x x x x x x

x x x x x x x x x x x x x x x x x x x

x x x x x x x x x x x x x x x x x x

x x x x x x x x x x x x x x x x x

x x x x x x x x x x x x x x x x x x

Participating Data Bits

2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 Parity

(1)

Check Bits

(2)

6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0

x x x x x x x x x x x Even ECC[7]

x x x x x x x x x x x Even ECC[6]

x x x x x x x x x x x Even ECC[5]

x x x x x x x x x x x x x x Even ECC[4]

x x x x x x x x x x x x x Odd ECC[3]

x x x x x x x x x x x x x x Odd ECC[2]

x x x x x x x x x x x x x x x Even ECC[1]

x x x x x x x x x x x x x x Even ECC[0]

(1)

For Odd parity, XOR a 1 to the row’s XOR result. For even Parity, use the row’s XOR result directly.

(2)

Each ECC[x] represents the XOR of all the address and data bits marked with x in the same row.

326

F021 Level 2 Flash Module Controller (L2FMC) SPNU562–May 2014

Submit Documentation Feedback