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AM3874 Datasheet(PDF) 148 Page - Texas Instruments

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Part # AM3874
Description  AM387x Sitara??ARM Processors
PDF  361 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

AM3874 Datasheet(HTML) 148 Page - Texas Instruments

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AM3874, AM3871
SPRS695C – SEPTEMBER 2011 – REVISED DECEMBER 2013
www.ti.com
4.2.2
NAND Flash Boot
Table 4-3 lists the device pins that are configured by the ROM for the NAND Flash boot mode.
NOTE: Table 4-3 lists the configuration of the GPMC_CLK pin (pin mux and pull state) in NAND
bootmodes.
The NAND flash memory is not XIP and requires shadowing before the code can be executed.
Table 4-3. Pins Used in NAND FLASH Bootmode
OTHER
SIGNAL NAME
PIN NO.
TYPE
CONDITIONS
GPMC_CS[0]/*
T28
O
GPMC_ADV_ALE/*
M26
O
BTMODE[12] = 0b
GPMC_OE_RE
T27
O
(8-bit Mode)
BTMODE[12] = 1b
GPMC_BE[0]_CLE/GPMC_A[25]/*
U27
O
(16-bit Mode)
GPMC_BE[1]/GPMC_A[24]/*
V28
O
GPMC_WE
U28
O
BTMODE[14:13] =
GPMC_WAIT[0]/GPMC_A[26]/*(1)
W28
I
00b (GPMC CS0
not muxed)
GPMC_CLK/*
R26
O
Y25,V24,U23,U24,
BTMODE[15] = 0b
AA27,Y26,AB28,Y2
(wait disabled)
GPMC_D[15:0]/*
7,
I/O
V25,U25,AA28,V26
,W27,V27,Y28,U26
(1)
GPMC_CLK/* is not configured in BTMODE[10] = 1 [OPTION B]
4.2.3
NAND I2C Boot (I2C EEPROM)
Table 4-4 lists the device pins that are configured by the ROM for the NAND I2C boot mode.
Table 4-4. Pins Used in NAND I2C Bootmode
SIGNAL NAME
PIN NO.
TYPE
I2C[0]_SCL
AC4
I/O
I2C[0]_SDA
AB6
I/O
4.2.4
MMC/SD Cards Boot
Table 4-5 lists the device pins that are configured by the ROM for the MMC/SD boot mode.
Table 4-5. Pins Used in MMC/SD Bootmode
SIGNAL NAME
PIN NO.
TYPE
SD1_CLK
P3
O
SD1_CMD/GP0[0] [MUX0]
P2
O
SD1_DAT[0]
P1
I/O
SD1_DAT[1]_SDIRQ
P5
I/O
SD_DAT[2]_SDRW
P4
I/O
SD1_DAT[3]
P6
I/O
148
Device Configurations
Copyright © 2011–2013, Texas Instruments Incorporated
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Product Folder Links: AM3874 AM3871



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