Atmel /ATSAMA5D33 /MPDDRC /CR

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Interpret as CR

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (COL_9)NC0 (ROW_11)NR0CAS0 (RESET_DISABLED)DLL 0 (DIC_DS)DIC_DS 0 (DIS_DLL)DIS_DLL 0 (INIT)ZQ0OCD0 (NOT_SHARED)DQMS 0 (OFF)ENRDM 0 (4)NB 0 (ENABLED)NDQS 0 (DECOD)DECOD 0 (UNSUPPORTED)UNAL

NDQS=ENABLED, NR=ROW_11, UNAL=UNSUPPORTED, DLL=RESET_DISABLED, ZQ=INIT, DQMS=NOT_SHARED, ENRDM=OFF, NC=COL_9, NB=4

Description

MPDDRC Configuration Register

Fields

NC

Number of Column Bits.

0 (COL_9): 9 DDR column bits

1 (COL_10): 10 DDR column bits

2 (COL_11): 11 DDR column bits

3 (COL_12): 12 DDR column bits

NR

Number of Row Bits

0 (ROW_11): 11 row bits

1 (ROW_12): 12 row bits

2 (ROW_13): 13 row bits

3 (ROW_14): 14 row bits

CAS

CAS Latency

2 (DDR_CAS2): LPDDR1 CAS Latency 2

3 (DDR_CAS3): DDR2/LPDDR2/LPDDR1 CAS Latency 3

4 (DDR_CAS4): DDR2/LPDDR2 CAS Latency 4

5 (DDR_CAS5): DDR2/LPDDR2 CAS Latency 5

6 (DDR_CAS6): DDR2 CAS Latency 6

DLL

Reset DLL

0 (RESET_DISABLED): Disable DLL reset.

1 (RESET_ENABLED): Enable DLL reset.

DIC_DS

Output Driver Impedance Control (Drive Strength)

DIS_DLL

DISABLE DLL

ZQ

ZQ Calibration

0 (INIT): Calibration command after initialization

1 (LONG): Long calibration

2 (SHORT): Short calibration

3 (RESET): ZQ Reset

OCD

Off-chip Driver

DQMS

Mask Data is Shared

0 (NOT_SHARED): DQM is not shared with another controller.

1 (SHARED): DQM is shared with another controller.

ENRDM

Enable Read Measure

0 (OFF): DQS/DDR_DATA phase error correction is disabled.

1 (ON): DQS/DDR_DATA phase error correction is enabled.

NB

Number of Banks.

0 (4): 4 banks

1 (8): 8 banks

NDQS

Not DQS:

0 (ENABLED): Not DQS is enabled.

1 (DISABLED): Not DQS is disabled.

DECOD

Type of Decoding

UNAL

Support Unaligned Access

0 (UNSUPPORTED): Unaligned access is not supported.

1 (SUPPORTED): Unaligned access is supported.

Links

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