Product preview – Texas Instruments TMS320C6454 User Manual
Page 20
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PRODUCT PREVIEW
ACE4
(A)
AECLKOUT
AED[63:0]
ACE3
(A)
ACE2
(A)
AEA[19:0]
AARDY
Data
Memory Map
Space Select
Address
Byte Enables
64
20
External
Memory I/F
Control
EMIFA (64-bit Data Bus)
AECLKIN
AHOLD
AHOLDA
ABUSREQ
Bus
Arbitration
ABE3
ABE2
ABE1
ABE0
ASWE/AAWE
DDR2CLKOUT
DED[31:0]
DCE0
DEA[13:0]
Data
Memory Map
Space Select
Address
Byte Enables
32
14
External
Memory I/F
Control
DDR2 Memoty Controller (32-bit Data Bus)
DSDCAS
DSDCKE
DDR2CLKOUT
DSDDQS[3:0]
DSDRAS
DSDWE
DSDDQS[3:0]
ABE7
ABE6
ABE5
ABE4
ACE5
(A)
Bank Address
ABA[1:0]
AR/W
AAOE/ASOE
ASADS/ASRE
Bank Address
DBA[2:0]
DEODT[1:0]
DSDDQGATE[0]
DSDDQM3
DSDDQM2
DSDDQM1
DSDDQM0
A.
The EMIFA ACE0 and ACE1 are not functionally supported on the C6454 device.
DSDDQGATE[1]
DSDDQGATE[2]
DSDDQGATE[3]
TMS320C6454
Fixed-Point Digital Signal Processor
SPRS311A – APRIL 2006 – REVISED DECEMBER 2006
Figure 2-8. EMIFA/DDR2 Memory Controller Peripheral Signals
Device Overview
20