ADSP-2189MBSTZ-266 Analog Devices Inc, ADSP-2189MBSTZ-266 Datasheet - Page 8

• Manufacturer Part Number: ADSP-2189MBSTZ-266
• Description: IC,DSP,16-BIT,CMOS,QFP,100PIN,PLASTIC
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2189MBSTZ-266

• Interface: Host Interface, Serial Port
• Clock Rate: 66MHz
• Non-volatile Memory: External
• On-chip Ram: 192kB
• Voltage - I/o: 3.30V
• Voltage - Core: 2.50V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Device Core Size: 16b
• Format: Fixed Point
• Clock Freq (max): 66MHz
• Mips: 66
• Device Input Clock Speed: 66MHz
• Ram Size: 192KB
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (min): 2.25V
• Operating Supply Voltage (max): 2.75/3.6V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 100
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADSP-2189MBSTZ266

Mode D = 1 and in host mode: IACK is an open source and
requires an external pull-down, but multiple IACK pins can be
wire OR-ed together.
MEMORY ARCHITECTURE
The ADSP-2189M 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-2189M.
Program Memory
Program Memory, Full Memory Mode is a 24-bit-wide space
for storing both instruction op codes and data. The ADSP-2189M
has 32K 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.
Program Memory, Host Mode allows access to all internal
memory. External overlay access is limited by a single external
address line (A0). External program execution is not available in
host mode due to a restricted data bus that is 16-bits wide only.
PMOVLAY
0, 4, 5
1
2
ADSP-2189M
Memory
Internal
External
Overlay 1
External
Overlay 2
Table III. PMOVLAY Bits
INTERNAL
MEMORY
A13
Not Applicable Not Applicable
0
1
PROGRAM MEMORY
ACCESSIBLE WHEN
PMOVLAY = 0, 4, 5
0 0000 – 0 1FFF
PMOVLAY = 1, 2
PM (MODE B = 0)
EXTERNAL
MEMORY
8K EXTERNAL
8K INTERNAL
8K INTERNAL
PMOVLAY = 0
ACCESSIBLE
AT ADDRESS
MODE B = 0
ACCESSIBLE WHEN
PMOVLAY = 4
ALWAYS
OR
ACCESSIBLE WHEN
PMOVLAY = 5
ACCESSIBLE WHEN
PMOVLAY = 1
A12:0
13 LSBs of Address
Between 0x2000
and 0x3FFF
13 LSBs of Address
Between 0x2000
and 0x3FFF
ACCESSIBLE WHEN
PMOVLAY = 2
ADDRESS
0 2000–
0 3FFF
0 3FFF
0 1FFF
0 0000
0 2000
Figure 4. Program Memory
0 2000–
0 3FFF
0 2000–
0 3FFF
0 2000–
0 3FFF
0 2000–
0 3FFF
–8–
2
INTERNAL
MEMORY
2
Data Memory
Data Memory, Full Memory Mode is a 16-bit-wide space
used for the storage of data variables and for memory-mapped
control registers. The ADSP-2189M has 48K words on Data
Memory RAM on-chip. Part of this space is used by 32 memory-
mapped registers. Support also exists for up to two 8K external
memory overlay spaces through the external data bus. All inter-
nal accesses complete in one cycle. Accesses to external memory
are timed using the wait-states specified by the DWAIT register
and the wait-state mode bit.
INTERNAL
MEMORY
ACCESSIBLE WHEN
PM (MODE B = 1)
ACCESSIBLE WHEN
PROGRAM MEMORY
1
2
EXTERNAL
MEMORY
WHEN MODE B = 1, PMOVLAY MUST BE SET TO 0
SEE TABLE III FOR PMOVLAY BITS
DATA MEMORY
0 2000 – 0 3FFF
DMOVLAY = 0
PMOVLAY = 0
8K EXTERNAL
AT ADDRESS
ACCESSIBLE WHEN
DMOVLAY = 4
ACCESSIBLE
8K INTERNAL
PMOVLAY = 0
RESERVED
MODE B = 1
ALWAYS
ACCESSIBLE WHEN
DMOVLAY = 5
RESERVED
EXTERNAL
MEMORY
RESERVED
ACCESSIBLE WHEN
PMOVLAY = 1
ACCESSIBLE WHEN
DMOVLAY = 6
1
Figure 5. Data Memory Map
ACCESSIBLE WHEN
DMOVLAY = 7
ADDRESS
0 2000–
0 3FFF
RESERVED
0 3FFF
0 1FFF
0 0000
0 0000–
0 1FFF
0 2000
0 0000–
0 1FFF
ACCESSIBLE WHEN
DMOVLAY = 1
ACCESSIBLE WHEN
DMOVLAY = 2
0 0000–
0 1FFF
0 0000–
0 1FFF
0 0000–
0 1FFF
0 0000–
0 1FFF
2
0 0000–
0 1FFF
2
DMOVLAY = 1, 2
DATA MEMORY
EXTERNAL 8K
0 0000–
0 1FFF
32 MEMORY–
8K INTERNAL
REGISTERS
DMOVLAY =
INTERNAL
0, 4, 5, 6, 7
MAPPED
WORDS
0 0000–
0 1FFF
8160
OR
ADDRESS
0 3FDF
0 3FFF
0 3FE0
0 1FFF
0 0000
0 2000
REV. A