TMS320C6454

Fixed-Point Digital Signal Processor

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SPRS311A –APRIL 2006 –REVISED DECEMBER 2006

 

Table 2-3. Terminal Functions

(continued)

SIGNAL

TYPE (1) IPD/IPU (2)

DESCRIPTION

NAME

NO.

 

PRODUCT PREVIEW

PTRDY

P4

I/O/Z

HD31/AD31

AA3

 

HD30/AD30

AA5

 

HD29/AD29

AC4

 

HD28/AD28

AA4

 

HD27/AD27

AC5

 

HD26/AD26

Y1

 

HD25/AD25

AD2

 

HD24/AD24

W1

I/O/Z

HD23/AD23

AC3

 

HD22/AD22

AE1

 

HD21/AD21

AD1

 

HD20/AD20

W2

 

HD19/AD19

AC1

 

HD18/AD18

Y2

 

HD17/AD17

AB1

 

HD16/AD16

Y3

 

HD15/AD15

AB2

 

HD14/AD14

W4

 

HD13/AD13

AC2

 

HD12/AD12

V4

 

HD11/AD11

AF3

 

HD10/AD10

AE3

 

HD9/AD9

AB3

 

HD8/AD8

W5

I/O/Z

HD7/AD7

AB4

 

HD6/AD6

Y4

 

HD5/AD5

AD3

 

HD4/AD4

Y5

 

HD3/AD3

AD4

 

HD2/AD2

W6

 

HD1/AD1

AB5

 

HD0/AD0

AE2

 

PCI target ready (PRTDY) (I/O/Z). By default, this pin has no function.

Host-port data [31:16] pin (I/O/Z) [default] or PCI data-address bus [31:16] (I/O/Z)

Host-port data [15:0] pin (I/O/Z) [default] or PCI data-address bus [15:0] (I/O/Z)

EMIFA (64-BIT) - CONTROL SIGNALS COMMON TO ALL TYPES OF MEMORY

ABA1/EMIFA_EN

V25

O/Z

IPD

ABA0/DDR2_EN

V26

O/Z

IPD

EMIFA bank address control (ABA[1:0])

Active-low bank selects for the 64-bit EMIFA.

When interfacing to 16-bit Asynchronous devices, ABA1 carries bit 1 of the byte address.

For an 8-bit Asynchronous interface, ABA[1:0] are used to carry bits 1 and 0 of the byte address

DDR2 Memory Controller enable (DDR2_EN) [ABA0]

0 - DDR2 Memory Controller peripheral pins are disabled (default) 1 - DDR2 Memory Controller peripheral pins are enabled

EMIFA enable (EMIFA_EN) [ABA1]

0 - EMIFA peripheral pins are disabled (default)

1 - EMIFA peripheral pins are enabled

26

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Texas Instruments TMS320C6454 warranty Emifa 64-BIT Control Signals Common to ALL Types of Memory