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Table of Contents
3/15/16 Pg-19
Preliminary 3/15/16
3.21 MUX, Super-MUX and DDR .................................................892
3.21.1 Overview ......................................................................................................893
3.21.2 Single Data Rate Mode (SDR).....................................................................897
3.21.3 Double Data Rate (DDR) Patterns ...............................................................899
3.21.3.1 DDR Overview.............................................................................................................899
3.21.3.2 DDR Hardware Details ................................................................................................901
3.21.3.3 DDR Pin Scramble.......................................................................................................903
3.21.3.4 DDR Test Patterns........................................................................................................904
3.21.3.5 DDR Timing.................................................................................................................906
3.21.4 MUX Mode ..................................................................................................916
3.21.5 Super-MUX Mode........................................................................................919
3.21.6 Single-Ended MUX Mode ...........................................................................922
3.21.7 ECR and DDR and/or MUX/Super-MUX ...................................................923
3.21.7.1 ECR Operation Mini-review........................................................................................924
3.21.7.2 ECR DDR Pattern Operation .......................................................................................928
3.21.7.3 ECR DDR Address Differentiator ...............................................................................929
3.21.7.4 ECR DDR Examples....................................................................................................931
3.21.7.5 ECR MUX and Super-MUX Pin Operation.................................................................934
3.21.7.6 ECR MUX Address Differentiator...............................................................................935
3.21.7.7 ECR MUX/Super-MUX Pin Examples .......................................................................938
3.21.7.8 ECR DDR + MUX/SuperMUX Operation ..................................................................942
3.21.7.9 ECR DDR + MUX/SMUX Timing..............................................................................944
3.21.7.10 ECR DDR + MUX Examples ......................................................................................946
3.21.7.11 ECR DDR + SuperMUX Examples.............................................................................949
3.21.7.12 ECR DDR, MUX/SuperMUX Configuration..............................................................950
3.21.8 DBM DDR, MUX & Super-MUX Operation..............................................952
3.21.9 MUX, Super-MUX & DDR Software..........................................................975
3.21.9.1 Types, Enums, etc. .......................................................................................................975
3.21.9.2 ddr_mode_set() ............................................................................................................976
3.21.9.3 mux_mode_set(), mux_mode_get().............................................................................978
3.21.9.4 tcal_mux_pin_set(), tcal_mux_pin_get().....................................................................981
3.21.9.5 mux_mode(), mux_mode_disable().............................................................................982
3.21.9.6 fail_signal_mux().........................................................................................................982
3.22 Pin Frequency Measurement (PFM) .....................................984
3.22.1 Overview ......................................................................................................984
3.22.2 Pin Frequency Measurement Operation.......................................................985
3.22.3 Pin Frequency Measure Software ................................................................993
3.22.3.1 Types, Enums, etc. .......................................................................................................994
3.22.3.2 pin_frequency_meas()..................................................................................................994