GP2021 Datasheet, PDF (51/62 Pages) Mitel Networks Corporation – GPS 12 channel Correlator Advance Information

GP2021
MCLK
DBE
A<22:20>
A<9:0>
NEEPROM/NSPARE_CS
NRD
D<15:0>
neeLmcL
nrdLmcL
adVneeL
mcLnrdH
nrdHdbH
EEPROM/SPARE data
Fig. 32 : Intel 486 mode write (NARMSYS = 1, NINTELMOT = 0, WRPROG = !)
Timing Parameter Description
Symbol
Min
ALE_IP High to WREN and NCS Low setup time
τ_alHwcL
5
ALE_IP High to ALE_IP Low pulse width
τ_alHalL
13
ALE_IP Low to WREN or NCS High pulse width
τ_alLwcH
10
WREN and NCS Low to WREN or NCS High pulse width
τ_wcLwcH
10
WREN or NCS High to ALE_IP High hold–off time
τ_wcHalH
5
Address Valid to ALE_IP Low setup time
τ_adValL
9
ALE_IP Low to Address Invalid hold time
τ_alLadI
8
Data Valid to WREN or NCS High setup time
WREN or NCS High to Data Invalid hold time
τ_daVwcH
7
τ_wcHdaI
5
Note: 1 Write inhibited until ALE_IP falling edge.
Max
Units Notes
ns
ns
ns
1
ns
ns
ns
ns
ns
ns
51