Datasheet

Table Of Contents
TMS320DM6467T
SPRS605C JULY 2009REVISED JUNE 2012
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Table 4-10. BOOTCFG Register Bit Descriptions
BIT NAME DESCRIPTION
31:18 RESERVED Reserved. Read returns "0".
DSP Boot. Latched from DSPBOOT input at the rising edge of RESET or POR.
0 = ARM boots C64x+.
1 = C64x+ self-boots.
17 DSP_BT
This bit will cause the DSP to be released from reset automatically. The C64x+ will boot from
EMIFA (default DSPBOOTADDR address 0x4220 0000). If BOOTMODE = 0010 or 0011,
or PCIEN = 1, then the C64x+ self-boot will fail since EMIFA will be disabled.
PCI Enable. Latched from PCIEN input at the rising edge of RESET or POR.
0 = PCI disabled.
16 PCIEN 1 = PCI enabled.
PCIEN = 1 disables the internal pullup and pulldown resistors on the PCI pins and configures the
pin muxing for PCI.
15:9 RESERVED Reserved. Read returns "0".
EMIFA EM_CS2 Default Bus Width. Latched from CS2BW input at the rising edge of RESET or
POR.
0 = Default to 8-bit operation.
8 CS2_BW
1 = Default to 16-bit operation.
This bit determines the default bus width of the EMIFA EM_CS2 memory space. This ensures that
boot from EMIFA (ARM or DSP) will correctly read the attached memory.
7:4 RESERVED Reserved. Read returns "0".
Boot Mode Configuration Bits. Bit values latched from BTMODE[3:0] at the rising edge of RESET or
POR.
0000 = Emulation boot.
0001 = Reserved.
0010 = HPI-16 (if PCIEN = 0).
PCI without autoinitialization (if PCIEN = 1).
0011 = HPI-32 (if PCIEN = 0).
PCI with autoinitialization (if PCIEN = 1).
0100 = EMIFA direct boot (ROM/NOR) (if PCIEN = 0; error if PCIEN = 1 defaults to UART0).
0101 = Reserved.
3:0 BOOTMODE 0110 = I2C boot.
0111 = NAND Flash boot (if PCIEN = 0; error if PCIEN = 1 defaults to UART0).
1000 = UART0 boot.
1001 = Reserved.
1010 = Reserved.
1011 = Reserved.
1100 = Reserved.
1101 = Reserved.
1110 = SPI boot.
1111 = Reserved.
96 Device Configurations Copyright © 2009–2012, Texas Instruments Incorporated
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