ADSP-2185NBST-320 Analog Devices Inc, ADSP-2185NBST-320 Datasheet - Page 10

• Manufacturer Part Number: ADSP-2185NBST-320
• Description: IC DSP CONTROLLER 16BIT 100LQFP
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2185NBST-320

• Rohs Status: RoHS non-compliant
• Interface: Host Interface, Serial Port
• Clock Rate: 80MHz
• Non-volatile Memory: External
• On-chip Ram: 80kB
• Voltage - I/o: 1.8V, 2.5V, 3.3V
• Voltage - Core: 1.90V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Device Core Size: 16b
• Architecture: Enhanced Harvard
• Format: Fixed Point
• Clock Freq (max): 80MHz
• Mips: 80
• Device Input Clock Speed: 80MHz
• Ram Size: 80KB
• Program Memory Size: Not RequiredKB
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (min): 1.8V
• Operating Supply Voltage (max): 2/3.6V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 100
• Package Type: LQFP
• Lead Free Status / Rohs Status: Not Compliant

ADSP-218xN
Program Memory
Program Memory (Full Memory Mode) is a 24-bit-wide space
for storing both instruction opcodes and data. The member
0x3FFF
0x2000
0x1FFF
0x3FFF
0x2000
0x1FFF
0x0000
0x0000
0x2000
0x3FFF
0x1FFF
0x0000
PROGRAM MEMORY
PROGRAM MEMORY
PROGRAM MEMORY
EXTERNAL PM
EXTERNAL PM
EXTERNAL PM
RESERVED
RESERVED
MODEB = 1
MODEB = 1
RESERVED
MODEB = 1
Figure 7. ADSP-2187 Memory Architecture
Figure 8. ADSP-2188 Memory Architecture
Figure 9. ADSP-2189 Memory Architecture
Rev. A | Page 10 of 48 | August 2006
0x2000
0x2000
0x3FFF
0x1FFF
0x0000
0x3FFF
0x1FFF
0x0000
0x2000
0x3FFF
0x1FFF
0x0000
PROGRAM MEMORY
PROGRAM MEMORY
PROGRAM MEMORY
PM OVERLAY 0,4,5
PM OVERLAY 1,2
PM OVERLAY 0,4,5
PM OVERLAY 1,2
(EXTERNAL PM)
(EXTERNAL PM)
(INTERNAL PM)
(INTERNAL PM)
PM OVERLAY 1,2
INTERNAL PM
(EXTERNAL PM)
(INTERNAL PM)
INTERNAL PM
PM OVERLAY
INTERNAL PM
MODEB = 0
MODEB = 0
MODEB = 0
0,4,5,6,7
DSPs of this series have up to 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.
0x3FE0
0x3FE0
0x3FDF
0x2000
0x1FFF
0x3FFF
0x0000
0x3FFF
0x3FDF
0x2000
0x1FFF
0x0000
0x3FE0
0x3FDF
0x2000
0x1FFF
0x3FFF
0x0000
CONTROL REGISTERS
CONTROL REGISTERS
32 MEMORY-MAPPED
32 MEMORY-MAPPED
CONTROL REGISTERS
32 MEMORY-MAPPED
DM OVERLAY 0,4,5
DATA MEMORY
DM OVERLAY 1,2
DM OVERLAY 1,2
DATA MEMORY
(EXTERNAL DM)
(EXTERNAL DM)
(INTERNAL DM)
(INTERNAL DM)
DATA MEMORY
DM OVERLAY 1,2
INTERNAL DM
(EXTERNAL DM)
INTERNAL DM
DM OVERLAY
INTERNAL DM
(INTERNAL DM)
DM OVERLAY
0,4,5,6,7,8
0,4,5,6,7