MSC8144 Freescale Semiconductor, MSC8144 Datasheet - Page 68

• Manufacturer Part Number: MSC8144
• Description: Quad Core Digital Signal Processor
• Manufacturer: Freescale Semiconductor

Hardware Design Considerations
3.3.1.2
Table 55 lists unused pin connection when using 16-bit DDR memory. The 16 most significant data lines are not used.
3.3.1.3
When the error code corrected mechanism is not used in any 32- or 16-bit DDR configuration, refer to Table 56 to determine
the correct pin connections.
68
MDQ[0–15]
MDQ[16–31]
MDQS[0–1]
MDQS[2–3]
MDQS[0–1]
MDQS[2–3]
MA[0–15]
MCK[0–2]
MCK[0–2]
MCS[0–1]
MDM[0–1]
MDM[2–3]
MBA[0–2]
MCAS
MCKE[0–1]
MODT[0–1]
MDIC[0–1]
MRAS
MWE
MV
V
MECC[0–7]
ECC_MDM
ECC_MDQS
ECC_MDQS
DDDDR
REF
Table 55. Connectivity of DDR Related Pins When Using 16-bit DDR Memory Only
16-Bit DDR Memory Only
ECC Unused Pin Connections
Signal Name
Signal Name
MSC8144 Quad Core Digital Signal Processor Data Sheet, Rev. 1
Table 56. Connectivity of Unused ECC Mechanism Pins
Pin connection
Pin connection
pull-up to V
pull-down to GND
pull-up to V
pull-up to V
pull-down to GND
pull-up to V
2.5 V or 1.8 V
1/2*V
in use
in use
in use
in use
in use
in use
in use
in use
in use
in use
in use
in use
in use
in use
in use
NC
NC
DDDDR
DDDDR
DDDDR
DDDDR
DDDDR
Freescale Semiconductor