ADSP-2188M Datasheet, PDF (15/52 Pages) Analog Devices – DSP Microcomputer

ADSP-2188M Preliminary Data Sheet
For current information contact Analog Devices at [phone]
April 1999
IACK Configuration
Mode D = 0 and in host mode: IACK is an active, driven signal and cannot be “wire OR’d”.
Mode D = 1 and in host mode: IACK is an open drain and requires an external pulldown, but multiple
IACK pins can be “wire OR’d” together.
MEMORY ARCHITECTURE
The ADSP-2188M provides a variety of memory and peripheral interface options. The key functional
groups are Program Memory, Data Memory, Byte Memory, and I/O. Refer to the following figures and
tables for PM and DM memory allocations in the ADSP-2188M.
Program Memory
Program Memory (Full Memory Mode) is a 24-bit-wide space for storing both instruction opcodes and
data. The ADSP-2188M has 48K words of Program Memory RAM on chip, and the capability of
accessing up to two 8K external memory overlay spaces using the external data bus.
REV. PrA
This information applies to a product under development. Its characteristics and specifications are subject to change with-
out notice. Analog Devices assumes no obligation regarding future manufacturing unless otherwise agreed to in writing.
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