Texas Instruments TMS320C6454 warranty Name Emifa 64-BIT Address, AEA1916, AEA15, AEA14, AEA13

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TMS320C6454

Fixed-Point Digital Signal Processor

www.ti.com

SPRS311A –APRIL 2006 –REVISED DECEMBER 2006

Table 2-3. Terminal Functions (continued)

SIGNAL		TYPE (1)	IPD/IPU (2)		DESCRIPTION
NAME	NO.
				EMIFA (64-BIT) - ADDRESS
AEA19/BOOTMODE3	N25			EMIFA external address (word address) (O/Z)
AEA18/BOOTMODE2	L26			Controls initialization of the DSP modes at reset (I) via pullup/pulldown resistors
				[For more detailed information, see Section 3, Device Configuration.]
AEA17/BOOTMODE1	L25
		O/Z	IPD	Note: If a configuration pin must be routed out from the device, the internal
AEA16/BOOTMODE0	P26			pullup/pulldown (IPU/IPD) resistor should not be relied upon; TI recommends
				the use of an external pullup/pulldown resistor.
AEA15/AECLKIN_SEL	P27
				∙ Boot mode - device boot mode configurations (BOOTMODE[3:0]) [Note:
AEA14/HPI_WIDTH	R25
				the peripheral must be enabled to use the particular boot mode.]
AEA13/LENDIAN	R27	O/Z	IPU	AEA[19:16]:
AEA12	R28			0000	- No boot (default mode)
				0001	- Host boot (HPI)
				0010	-Reserved
				0011	- Reserved
				0100	- EMIFA 8-bit ROM boot
				0101	- Master I2C boot
				0110	- Slave I2C boot
				0111	- Host boot (PCI)
				1000 thru 1111 - Reserved
				For more detailed information on the boot modes, see Section 2.4, Boot
				Sequence.
				CFGGP[2:0] pins must be set to 000b during reset for proper operation of
				the PCI boot mode.
				∙ EMIFA input clock source select
				Clock mode select for EMIFA (AECLKIN_SEL)
				AEA15:
		O/Z	IPD	0 - AECLKIN (default mode)
AEA11	T25			1 - SYSCLK4 (CPU/x) Clock Rate. The SYSCLK4 clock rate is software
				selectable via the Software PLL1 Controller. By default, SYSCLK4 is

selected as CPU/8 clock rate.

∙ HPI peripheral bus width (HPI_WIDTH) select [Applies only when HPI is enabled; PCI_EN pin = 0]

AEA14:

0 - HPI operates as an HPI16 (default). (HPI bus is 16 bits wide. HD[15:0] pins are used and the remaining HD[31:16] pins are reserved pins in the Hi-Z state.)

1 - HPI operates as an HPI32.

∙ Device Endian mode (LENDIAN)

AEA13:

0 - System operates in Big Endian mode

1 - System operates in Little Endian mode(default)

Note: For proper C6454 device operation, the AEA12 and AEA11 pins must be externally pulled down with a 1-kΩresistor at device reset.

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