
Connect Tech Blue Heat/Net Sync User Manual
Revision 0.03 51
A[5..1] Addresses IUSC registers (see Memory Map Table below).
A[0] Not used explicitly, A0 (along with BS0# and BS1#) select byte size portions of IUSC
registers.
PLD Resource Access:
A[12] Must be one (1).
A[11..5] Are not used.
A[4..2] Are decoded into selections of internal PLD “registers”.
32 bit read/write (16 bit portions
also accessible)
A[1] Is used to select the 16 bit portions of the Real Time Clock register.
A[0] Is not used.
PLD Memory Map Table
8/16 bit Serial Data (byte/word)
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