EM77F900 Datasheet, PDF (84/136 Pages) ELAN Microelectronics Corp – USB HUB+BB Controller

EM77F900
USB HUB+BB Controller
9.5 Timing Diagram of MCU Interface
DML
SEFO
SEBES
VCVT
XSFO
XSBES
ECVT
UDZDMF
UST ^USI
USBT USBI
USEW
UXT ^UXI
UXBT ^UXBI
UXET ^UXEI
Symbol
tcycle
trs
trh
tras
trah
trdv
tws
twh
twas
twah
twds
twdh
Parameter
MCU clock cycle time
Read enable setup time
Read enable hold time
Read address setup time
Read address hold time
Read data valid time
Write enable setup time
Write enable hold time
Write address setup time
Write address hold time
Write data setup time
Write data hold time
Min
20ns
3ns
0.1ns
3ns
0.1ns
−
3ns
0.1ns
3ns
0.1ns
3ns
0.1ns
Max
−
−
−
−
−
5ns
−
−
−
−
−
−
76 •
Product Specification (V1.0) 07.31.2007
(This specification is subject to change without further notice)