Section 4.9, Section 4.10, 9 nand flash status register (nandfsr) – Texas Instruments TMS320DM646X DMSOC User Manual

Page 61

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Registers

4.9

NAND Flash Status Register (NANDFSR)

The NAND Flash status register (NANDFSR) is shown in

Figure 28

and described in

Table 41

.

Figure 28. NAND Flash Status Register (NANDFSR)

31

16

Reserved

R-0

15

4

3

0

Reserved

WAITST

R-0

R-0

LEGEND: R = Read only; -n = value after reset

Table 41. NAND Flash Status Register (NANDFSR) Field Descriptions

Bit

Field

Value

Description

31-4

Reserved

0

Reserved

3-0

WAITST

0-Fh

Raw status of the EM_WAITn input pin. The WPn bit in the asynchronous wait cycle configuration
register (AWCCR) has no effect on WAITST.

4.10

NAND Flash n ECC Registers (NANDF1ECC-NANDF4ECC)

The NAND Flash n ECC register (NANDECCn) is shown in

Figure 29

and described in

Table 42

. For 8-bit

NAND Flash, P1O, P2O, and P4O bits are column parities; P8O to P2048O bits are row parities. For
16-bit NAND Flash, P1O, P2O, P4O, and P8O bits are column parities; P16O to P2048O bits are row
parities.

61

SPRUEQ7C – February 2010

Asynchronous External Memory Interface (EMIF)

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