Texas Instruments AM335 Series Technical Reference Manual

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Table 7-31. Enable Chip-Select
Sub-process Name Register / Bitfield Value
When all parameters are configured, enable the chip-select GPMC_CONFIG7_i[6] CSVALID x
7.1.3.7 GPMC Configuration in NAND Mode
This section gives a generic configuration for parameters related to NAND memory connected to the
GPMC.
Table 7-32. NAND Memory Type
Sub-process Name Register / Bitfield Value
Set the NAND protocol GPMC_CONFIG1_i[11-10] DEVICETYPE 2h
Set a device size GPMC_CONFIG1_i[13-12] DEVICESIZE x
Set the address and data multiplexing protocol to non-
GPMC_CONFIG1_i[9] MUXADDDATA 0
multiplexed attached device
Select a timing signals latencies factor GPMC_CONFIG1_i[4] TIMEPARAGRANULARITY x
Set a synchronous or asynchronous mode and a single or
See Section 7.1.3.8 x
multiple access for read and write operations
Table 7-33. NAND Chip-Select Configuration
Sub-process Name Register / Bitfield Value
Select the chip-select base address GPMC_CONFIG7_i[5-0] BASEADDRESS x
Select the chip-select minimum granularity (16M bytes) GPMC_CONFIG7_i[11-8] MASKADDRESS x
Table 7-34. Asynchronous Read and Write Operations
Sub-process Name Register / Bitfield Value
Configure adequate timing parameters in asynchronous
See Section 7.1.3.9
modes
Table 7-35. ECC Engine
Sub-process Name Register / Bitfield Value
Select the ECC result register where the first ECC
GPMC_ECC_CONTROL[3-0] ECCPOINTER x
computation is stored (Only applies to Hamming)
Write 1 to
Clear all ECC result registers GPMC_ECC_CONTROL[8] ECCCLEAR
clear
GPMC_ECC_SIZE_CONFIG[19-12] ECCSIZE0 and
Define ECCSIZE0 and ECCSIZE1 x
GPMC_ECC_SIZE_CONFIG[29-22] ECCSIZE1
Select the size of each of the 9 result registers (size GPMC_ECC_SIZE_CONFIG[j-1] ECCjRESULTSIZE
x
specified by ECCSIZE0 or ECCSIZE1) where j = 1 to 9
Select the chip-select where ECC is computed GPMC_ECC_SIZE_CONFIG[3-1] ECCCS x
Select the Hamming code or BCH code ECC algorithm in
GPMC_ECC_SIZE_CONFIG[16] ECCALGORITHM x
use
Select word size for ECC calculation GPMC_ECC_SIZE_CONFIG[7] ECC16B x
If the BCH code is used, GPMC_ECC_SIZE_CONFIG[13-12] ECCBCHTSEL
Set an error correction capability and and GPMC_ECC_SIZE_CONFIG[6-4] x
Select a number of sectors to process ECCTOPSECTOR
339
SPRUH73H–October 2011–Revised April 2013 Memory Subsystem
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Texas Instruments AM335 Series Specifications

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Brand	Texas Instruments
Model	AM335 Series
Category	Computer Hardware
Language	English