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参数资料
| 型号： | ADSP-2185MKSTZ-300 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 4/40页 |
| 文件大小： | 0K |
| 描述： | IC DSP CONTROLLER 16BIT 100-LQFP |
| 标准包装： | 1 |
| 系列： | ADSP-21xx |
| 类型： | 定点 |
| 接口： | 主机接口，串行端口 |
| 时钟速率： | 75MHz |
| 非易失内存： | 外部 |
| 芯片上RAM： | 80kB |
| 电压 - 输入/输出： | 3.30V |
| 电压 - 核心： | 2.50V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 100-LQFP |
| 供应商设备封装： | 100-LQFP（14x14） |
| 包装： | 托盘 |
| 其它名称： | ADSP-2185MKSTZ300 |
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REV. 0
–12–
ADSP-2185M
Active Configuration
Active Configuration involves the use of a three-statable external
driver connected to the Mode C pin. A driver’s output enable
should be connected to the DSP’s
RESET signal such that it
only drives the PF2 pin when
RESET is active (low). When
RESET is deasserted, the driver should three-state, thus allow-
ing full use of the PF2 pin as either an input or output. To
minimize power consumption during power-down, configure
the programmable flag as an output when connected to a three-
stated buffer. This ensures that the pin will be held at a constant
level, and will not oscillate should the three-state driver’s level
hover around the logic switching point.
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 pull-down, but multiple
IACK pins can be
“wire OR’d” together.
MEMORY ARCHITECTURE
The ADSP-2185M 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-2185M.
Program Memory
Program Memory (Full Memory Mode) is a 24-bit-wide
space for storing both instruction opcodes and data. The ADSP-
2185M has 16K words of Program Memory RAM on chip, and
the capability of accessing up to two 8K external memory over-
lay 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.
ACCESSIBLE WHEN
PMOVLAY = 0
0x0000 –
0x1FFF2
EXTERNAL
MEMORY
0x0000 –
0x1FFF2
RESERVED
ACCESSIBLE WHEN
PMOVLAY = 2
0x2000 –
0x3FFF2
0x2000 –
0x3FFF2
EXTERNAL
MEMORY
ACCESSIBLE WHEN
PMOVLAY = 1
ACCESSIBLE WHEN
PMOVLAY = 0
0x2000 –
0x3FFF
PM (MODE B = 0)
ALWAYS
ACCESSIBLE
AT ADDRESS
0x0000 – 0x1FFF
PM (MODE B = 1)1
RESERVED
NOTES:
1WHEN MODE B = 1, PMOVLAY MUST BE SET TO 0
2SEE TABLE III FOR PMOVLAY BITS
ACCESSIBLE WHEN
PMOVLAY = 0
0x2000 –
0x3FFF
8K
INTERNAL
0x0000
8K INTERNAL
PMOVLAY = 0
OR
8K EXTERNAL
PMOVLAY = 1, 2
0x1FFF
0x2000
PROGRAM MEMORY
MODE B = 0
ADDRESS
0x3FFF
8K
EXTERNAL
0x0000
8K INTERNAL
PMOVLAY = 0
0x1FFF
0x2000
PROGRAM MEMORY
MODE B = 1
ADDRESS
Figure 4. Program Memory
Table III. PMOVLAY Bits
PMOVLAY
Memory
A13
A12:0
0
Internal
Not Applicable
1
External Overlay 1
0
13 LSBs of Address Between 0x2000 and 0x3FFF
2
External Overlay 2
1
13 LSBs of Address Between 0x2000 and 0x3FFF
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADSP-2185N | 制造商:AD 制造商全称:Analog Devices 功能描述:DSP Microcomputer |
| ADSP-2185NBCA-320 | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 80MHz 80MIPS 144-Pin CSP-BGA 制造商:Rochester Electronics LLC 功能描述:16K PM/16K DM RAM,16-BIT,80 MIPS, 1.8V - Bulk |
| ADSP-2185NBST-320 | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 80MHz 80MIPS 100-Pin LQFP 制造商:Analog Devices 功能描述:IC MICROCOMPUTER 16-BIT |
| ADSP-2185NBSTZ-320 | 功能描述:IC DSP CONTROLLER 16BIT 100LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - DSP（数字式信号处理器） 系列:ADSP-21xx 标准包装:2 系列:StarCore 类型:SC140 内核 接口:DSI，以太网，RS-232 时钟速率:400MHz 非易失内存:外部 芯片上RAM:1.436MB 电压 - 输入/输出:3.30V 电压 - 核心:1.20V 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:431-BFBGA，FCBGA 供应商设备封装:431-FCPBGA（20x20） 包装:托盘 |
| ADSP-2185NBSTZ-3202 | 制造商:AD 制造商全称:Analog Devices 功能描述:DSP Microcomputer |
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