參數(shù)資料
型號: GP2021
廠商: Mitel Networks Corporation
英文描述: GPS 12 channel Correlator(用于全球定位系統(tǒng)(GPS)接收器的12通道的C/A代碼基帶相關(guān)器)
中文描述: 全球定位系統(tǒng)12通道相關(guān)器(用于全球定位系統(tǒng)(GPS)的接收器的12通道的C / A電代碼基帶相關(guān)器)
文件頁數(shù): 53/62頁
文件大?。?/td> 371K
代理商: GP2021
57
GP2021
Timing Parameter Description
Symbol
Min
Max
Units
Notes
WREN or NCS Inactive to WREN and NCS active
τ
wcIwcA
23
ns
1
WREN and NCS active to WREN or NCS inactive
τ
wcAwcI
10
ns
1
ALE_IP High to ALE_IP Low pulse width
τ
alHalL
13
ns
WREN or NCS Inactive to ALE_IP Low Hold off time
τ
wcIalL
23
ns
1
Address Valid to ALE_IP Low setup time
τ
adValL
9ns
ALE_IP Low to Address Invalid hold time
τ
alLadI
8ns
READ Valid to WREN and NCS Active setup time
τ
rdVwcA
7
ns
1, 2
WREN and NCS Active to READ Invalid hold time
τ
wcArdI
5
ns
1, 2
DATA Valid to WREN or NCS Inactive setup time
τ
daVwcI
7ns
1
WREN or NCS Inactive to DATA Invalid hold time
τ
wcIdaI
5ns
1
Notes:
1
WREN is active High, NCS is Active Low.
2
READ is transparently latched by WREN and NCS being active.
3
There is no parameter specified for WREN or NCS Inactive to ALE_IP High, since the internal ALE signal is
disabled until after the end of the internal Read or Write Strobe; hence the need for the
τ
wcIalL
parameter.
WREN
NCS
READ
ALE_IP
A<9:2>
D<15:0>
DATA
VALID
wcIwcA
rdVwcA
wcArdI
wcIalL
alHalL
adValL
alLadI
daVwcI
wcIdaI
wcAwcI
ADDRESS
VALID
Fig. 38 : Motorola mode write, ALE_IP non-overlapping WREN and NCS (NARMSYS = 1, NINTELMOT = 1, WRPROG = X)
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PDF描述
GP2021 GPS 12 channel Correlator Advance Information
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