GESPAC GESMPU-4B controller

GESPAC GESMPU-4B controller

Register Selection and Write Procedure Select the slot of the module to be written to (or Slot 13 or 14). Initial conditions: SERDATIN = X DAQD*/A = X SLOT0SEL* = 1 SERCLK = 1 2. Clear SLOT0SEL* to 0. This deasserts all SS* lines to all modules in all chassis. 3. For each bit, starting with the MSB (bit 15), do the following: a. Set SERDATIN = bit to be sent. These bits are the data being written to the Slot-Select Register. b. Clear SERCLK to 0. c. Set SERCLK to 1. This rising edge clocks the data. If you are using an MIO-16 board, writing to the EXTSTROBE* register pulses EXTSTROBE* low and then high, accomplishing steps 3b and 3c.

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