参数资料
型号: ADSP-21161NCCAZ100
厂商: Analog Devices Inc
文件页数: 30/60页
文件大小: 0K
描述: IC DSP CONTROLLER 32BIT 225MBGA
产品培训模块: SHARC Processor Overview
标准包装: 1
系列: SHARC®
类型: 浮点
接口: 主机接口,连接端口,串行端口
时钟速率: 100MHz
非易失内存: 外部
芯片上RAM: 128kB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.80V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 225-BGA,CSPBGA
供应商设备封装: 225-CSPBGA(17x17)
包装: 托盘
其它名称: ADSP21161NCCAZ100
Rev. C
|
Page 36 of 60
|
January 2013
Asynchronous Read/Write — Host to ADSP-21161N
Use these specifications for asynchronous host processor
accesses of an ADSP-21161N, after the host has asserted CS and
HBR (low). After HBG is returned by the ADSP-21161N, the
host can drive the RD and WR pins to access the
ADSP-21161N’s IOP registers. HBR and HBG are assumed low
for this timing. Although the DSP will recognize HBR asserted
before reset, a HBG will not be returned by the DSP until after
reset is deasserted and the DSP completes bus synchronization.
Note
: Host internal memory access is not supported.
Table 22. Read Cycle
Parameter
Min
Max
Unit
Timing Requirements
tSADRDL
Address Setup and CS Low Before RD Low
0
ns
tHADRDH
Address Hold and CS Hold Low After RD
2ns
tWRWH
RD/WR High Width
3.5
ns
tDRDHRDY
RD High Delay After REDY (O/D) Disable
0
ns
tDRDHRDY
RD High Delay After REDY (A/D) Disable
0
ns
Switching Characteristics
tSDATRDY
Data Valid Before REDY Disable from Low
2
ns
tDRDYRDL
REDY (O/D) or (A/D) Low Delay After RD Low
10
ns
tRDYPRD
REDY (O/D) or (A/D) Low Pulsewidth for Read
1.5tCCLK
ns
tHDARWH
Data Disable After RD High
26ns
Table 23. Write Cycle
Parameter
Min
Max
Unit
Timing Requirements
tSCSWRL
CS Low Setup Before WR Low
0
ns
tHCSWRH
CS Low Hold After WR High
0
ns
tSADWRH
Address Setup Before WR High
6
ns
tHADWRH
Address Hold After WR High
2
ns
tWWRL
WR Low Width
tCCLK
ns
tWRWH
RD/WR High Width
3.5
ns
tDWRHRDY
WR High Delay After REDY (O/D) or (A/D) Disable
0
ns
tSDATWH
Data Setup Before WR High
5
ns
tHDATWH
Data Hold After WR High
4
ns
Switching Characteristics
tDRDYWRL
REDY (O/D) or (A/D) Low Delay After WR/CS Low
11
ns
tRDYPWR
REDY (O/D) or (A/D) Low Pulsewidth for Write
12
ns
1 Only when slave write FIFO is full.
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