CS22220 Datasheet, PDF (27/34 Pages) Cirrus Logic – WIRELESS PCI/USB CONTROLLER

5.2 PCMCIA Interface Timing Diagrams
PC_A[25:0], PC_NREG
PC_NCE
PC_NOE
PC_NWAIT
PC_D[15:0]
t_a(A)
t_c(R)
t_su(A)
t_a(CE)
t_su(CE)
t_a(OE)
t_v(WT-OE)
t_en(OE)
t_w(WT)
t_h(A)
t_v(A)
t_h(CE)
t_dis(CE)
t_v(WT)
t_dis(OE)
Figure 8. Attribute/Common Memory ‘Read’ Timing Diagram
Table 9. Common Memory ‘Read’ Timing Specification
Speed Version
Symbol
Item
Min
Read Cycle Time
t_cR
100
Address Accesss Time
t_a (A)
Card Enable Access Time
t_a (CE)
Output Enable Access Time
t_a (OE)
Output Disable Time from PC_NOE
t_dis (OE)
Output Disable Time from PC_NCE
t_en (CE)
5
Data Valid from Address Change
t_v (A)
0
Address Setup Time
t_su (A)
10
Address Hold Time
t_h (A)
15
Card Enable Setup Time
t_su (CE)
0
Card Enable Hold Time
t_h (CE)
15
PC_NWAIT Valid from PC_NOE
t_v (WT-OE)
PC_NWAIT Pulse Width
t_w (WT)
Data Setup for PC_NWAIT Released
t_v (WT)
0
100 ns
Max
100
100
50
50
35
12 us
CS22220 Wireless PCMCIA Controller
27 of 34
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