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©2018 Integrated Device Technology, Inc
September 12, 2018
8A3xxxx Family Programming Guide
The device contains multiple copies of many functional blocks and each will have its own associated register module for status and control. To
keep the documentation clear and concise, only the first instance of a register module for a specific functional block will be shown in detail.
The module table will show all instantiations of the module with their unique base addresses, but the links will all point to the same descriptive
section (see blue arrows in
). Please ensure that when addressing a register that the base address of the correct instantiation of the
module is used (see red arrows in
). Note that the base address indicated in the table description is for the first instantiation of the
module only (see green arrow in
). For example, as shown below, to access the DPLL_MANUAL_HOLDOVER_VALUE bit-field for
DPLL4, take the base address of that instantiation (C480h) and add the register offset of that specific register (008h). Note that since this
bit-field is more than one byte, all bytes should be accessed in a single serial port burst transaction starting at C488h.
Figure 5: Determining the Address to Access a Specific Register.
