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AM3874 Datasheet(PDF) 146 Page - Texas Instruments |
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AM3874 Datasheet(HTML) 146 Page - Texas Instruments |
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146 / 361 page  AM3874, AM3871 SPRS695C – SEPTEMBER 2011 – REVISED DECEMBER 2013 www.ti.com Table 4-2. XIP (on GPMC) Boot Options CONTROLLED I/O FUNCTION DURING XIP (NOR) BOOT BTMODE[10] = 0 [OPTION A] BTMODE[10] = 1 [OPTION B] SIGNAL NAME PIN NO. OTHER CONDITIONS PULL PULL PIN FUNCTION PIN FUNCTION STATE STATE GPMC_CS[0]/* T28 GPMC_CS[0] IPU GPMC_CS[0] IPU M26 BTMODE[14:13] = 01b or 10b (Mux) GPMC_ADV_ALE IPU GPMC_ADV_ALE IPU GPMC_ADV_ALE/* BTMODE[14:13] = 00b (Non-Mux) Default GPMC_OE_RE T27 GPMC_OE_RE IPU GPMC_OE_RE IPU GPMC_BE[0]_CLE/GPMC_A[25]/* U27 GPMC_BE[0]_CLE IPD Default IPD GPMC_BE[1]/GPMC_A[24]/* V28 Default IPD Default IPD GPMC_WE U28 GPMC_WE IPU GPMC_WE IPU W28 BTMODE[15] = 1b (WAIT Used/Enabled) GPMC_WAIT[0] IPU GPMC_WAIT[0] IPU GPMC_WAIT[0]/GPMC_A[26]/* BTMODE[15] = 0b (WAIT Not Default IPD(1) Used/Disabled) GPMC_CLK/* R26 GPMC_CLK IPU Default IPU Y25,V24,U23,U24,AA27,Y26,AB GPMC_D[15:0] Off GPMC_D[15:0] Off GPMC_D[15:0]/* 28,Y27,V25,U25,AA28,V26,W27, V27,Y28,U26 J25 BTMODE[12] = 0b (8-bit Mode) GPMC_A[0] IPD GPMC_A[0] IPD */GPMC_A[27]/GPMC_A[26]/GPMC_A[0]/* BTMODE[12] = 1b (16-bit Mode) Default T23,H26,F28,G27,K22,K23,J24, XIP_MUX0 Mode GPMC_A[1:12] IPD GPMC_A[1:12] IPD */GPMC_A[1:12]/* (M0) H25,H22,H23,G23,F27 XIP_MUX1 Mode Default IPD Default IPD J28,K27,M24,L26,AD18,AC18,A XIP_MUX0 Mode Default Default Default Default */GPMC_A[1:12]/* (M1) C19,AA22,AE23,AD23,AB23,AF XIP_MUX1 Mode GPMC_A[1:12] Default GPMC_A[1:12] Default 18 */GPMC_A[13:15]/* (M0) J22,H24,J23 Default IPD Default IPD AF28 BTMODE[12] = 0b (8-bit Mode) Default IPU Default IPU */GPMC_A[0]/* (M1) BTMODE[12] = 1b (16-bit Mode) AF27 BTMODE[14:13] = 01b or 10b (Mux) Default IPU Default IPU */GPMC_A[13]/* (M1) BTMODE[14:13] = 00b (Non-Mux) IPD(1) AG28 BTMODE[14:13] = 01b or 10b (Mux) Default IPU Default IPU */GPMC_A[14]/* (M1) BTMODE[14:13] = 00b (Non-Mux) IPD(1) */GPMC_A[15]/* (M1) AE27 Default IPD Default IPD GPMC_A[16:19]/* AD27,V23,AE28,AC27 Default IPD Default IPD GPMC_A[20] (M0) AD28 Default IPU Default IPD(1) GPMC_A[21] (M0) AC28 Default IPD Default IPD GPMC_A[22] (M0) AB27 Default IPU Default IPD(1) GPMC_A[23] (M0) AA26 Default IPD Default IPD (1) After initial power-up the internal pullup (IPU) will be at its default configuration of IPU. During the boot ROM execution, the pull state is reconfigured to IPD and it remains IPD after boot until the user software reconfigures it. 146 Device Configurations Copyright © 2011–2013, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: AM3874 AM3871 |
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