Load Extended Mode Register 2 - Analog Devices SHARC ADSP-214 Series Hardware Reference Manual

Table of Contents

Advertisement

6. Bit 10 – Differential
7. Bit 12 – Output buffer enable/disable
8. Bits 15–14 = 01 for EMR1
The command can also be triggered by setting the
register.
DDR2CTL0

Load Extended Mode Register 2

Values written into the
as is during power up.
1. Bits 13–0 = always zero
2. Bits 15–14 = 10 for
Load Extended Mode Register 3
Values written into the
during power up.
1. Bits 13–0 = always zero (OCD exit)
2. Bits 15–14 = 10 for
The DDR2 controller does not support off-chip driver (OCD) cal-
ibration. Also note that all mode registers must be programmed
since the default settings in the DDR2 device are not defined.
Bank Activation
This command is required if the next data access is on a different page in
the same internal bank or in a different internal bank that is in an idle
state. The controller executes the pre-charge command, followed by a
bank activate command, to activate the page in the desired DDR2 internal
bank. The controller is able to open up to eight pages at the same time in
ADSP-214xx SHARC Processor Hardware Reference
www.BDTIC.com/ADI
enable/disable
DDR2_DQS
register are loaded into the
DDR2CTL4
EMR2
register are loaded into the
DDR2CTL5
EMR3
External Port
bit in the
FEMR
register
EMR2
register
EMR3
3-53

Advertisement

Table of Contents
loading

Table of Contents