Nexus 21 1066MT/s Interposer, DDR3 800, NEX DDR3INTR THIN Window, Mnemonic, Description, New Data Window, Waveform Window Type, 6.5 Viewing Timing Data on the TLA

Table 7 gives a brief description of each of the text lines displayed in the B_DDR3D_2G postprocessing software display.

Mnemonic	Description
ACT – BANK ACTIVATE	Active command – activate a row in a bank for subsequent access
(Sx# / bS# / cS#) Bank:	(Slot A, B or C; Chip Select 0-3; Bank x)
DESL - IGNORE COMMAND	Deselect function – no new command
(E)MRS – (EXTENDED) MODE	Mode Register Set command, registers 0-3;
REGISTER SET x (Sx# / bS# / cS#)	(Slot A, B or C; Chip Select 0-3)
NOP - NO OPERATION (Sx# / bS# / cS#)	No Operation command (Slot A, B or C; Chip Select 0-3)
PRE – SINGLE BANK PRECHARGE	Precharge command (Slot A, B or C; Chip Select 0-3; Bank x)
(Sx# / bS# / cS#) Bank:
PREA – PRECHARGE ALL BANK	Precharge All command (Slot A, B or C; Chip Select 0-3)
(Sx# / bS# / cS#)
RDA – READ W/AUTO PRECHARGE	Read command with auto precharge
(Sx# / bS# / cS#) Bank:	(Slot A, B or C; Chip Select 0-3; Bank x)
RD - READ (Sx# / bS# / cS#) Bank:	Read command – initiates a burst read access to active row
	(Slot A, B or C; Chip Select 0-3; Bank x)
READ DATA	Valid Read data on the bus
REF - REFRESH (Sx# / bS# / cS#)	Self Refresh command (Slot A, B or C; Chip Select 0-3)
WRA – WRITE W/AUTO PRECHARGE	Write command with auto precharge
(Sx# / bS# / cS#) Bank:	(Slot A, B or C; Chip Select 0-3; Bank x)
WR - WRITE (Sx# / bS# / cS#) Bank:	Write command – initiates a burst write access to active row
	(Slot A, B or C; Chip Select 0-3; Bank x)
WRITE DATA	Valid Write data on the bus
ZQCL – ZQ CALIBRATION LONG	ZQ Calibration Long (Slot A, B or C; Chip Select 0-3)
(Sx# / bS# / cS#)
ZQCS – ZQ CALIBRATION SHORT	ZQ Calibration Short (Slot A, B or C; Chip Select 0-3)
(Sx# / bS# / cS#)

Table 7 - B_DDR3D_2G Mnemonics Definition

6.5 Viewing Timing Data on the TLA

By default, the TLA will display an acquisition in the Listing (State) mode. However, the same data can be displayed in Timing form by adding a Waveform Display window. This is done by clicking on the Window pull-down, selecting New Data Window, clicking on Waveform Window Type, then choosing the Data Source. Two valid choices are presented: B_DDR3D_XX and B_DDR3D_XX: MagniVu. The first will show the exact same data (same acquisition mode) as that shown in the Listing window, except in Waveform format. The second selection will show all of the channels in 8GHz MagniVu mode, so that edge relationships can be examined around the MagniVu trigger point. MagniVu is very useful and in some cases necessary to see/resolve DDR3 data. With either selection, all channels can be viewed by scrolling down the window. Refer to the TLA System User’s Manual for additional information on formatting the Waveform display.

DDR3THIN-MN-XXX 67 Doc. Rev. 1.11