參數(shù)資料
型號(hào): ADSP-2185LBSTZ-210
廠商: Analog Devices Inc
文件頁(yè)數(shù): 20/48頁(yè)
文件大?。?/td> 0K
描述: IC DSP CONTROLLER 16BIT 100LQFP
標(biāo)準(zhǔn)包裝: 1
系列: ADSP-21xx
類(lèi)型: 定點(diǎn)
接口: 主機(jī)接口,串行端口
時(shí)鐘速率: 52MHz
非易失內(nèi)存: 外部
芯片上RAM: 80kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 3.30V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-LQFP(14x14)
包裝: 托盤(pán)
ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Rev. C
|
Page 27 of 48
|
January 2008
Memory Write
Table 18. Memory Write
Parameter
Min
Max
Unit
Switching Characteristics:
tDW
Data Setup Before WR High1
0.5tCK– 7 + w
ns
tDH
Data Hold After WR High
0.25tCK – 2
ns
tWP
WR Pulse Width
0.5tCK – 5 + w
ns
tWDE
WR Low to Data Enabled
0
ns
tASW
A13 – 0, xMS Setup Before WR Low
2
0.25tCK – 6
ns
tDDR
Data Disable Before WR or RD Low
0.25tCK – 7
ns
tCWR
CLKOUT High to WR Low
0.25tCK – 5
0.25tCK + 7
ns
tAW
A13 – 0, xMS Setup Before WR Deasserted
0.75tCK – 9 + w
ns
tWRA
A13 – 0, xMS Hold After WR Deasserted
0.25tCK – 3
ns
tWWR
WR High to RD or WR Low
0.5tCK – 5
ns
1 w = wait states × t
CK.
2 xMS = PMS, DMS, CMS, IOMS, BMS.
Figure 20. Memory Write
CLKOUT
tWP
tAW
tCWR
tDH
tWDE
tDW
tASW
tWWR
tWRA
tDDR
DMS, PMS,
BMS, CMS,
IOMS
RD
WR
1ADDRESS LINES FOR ACCESSES ARE:
2DATA LINES FOR ACCESSES ARE:
BDMA: A13–0 (14 LSBs), D23–16 (8 MSBs)
BDMA: D15–8
I/O SPACE: A10–0
I/O SPACE: D23–8
EXTERNAL PM AND DM: A13–0
EXTERNAL DM: D23–8
EXTERNAL PM: D23–0
ADDRESS LINES1
DATA LINES2
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