pxb4340e Infineon Technologies Corporation, pxb4340e Datasheet - Page 157

• Manufacturer Part Number: pxb4340e
• Description: Atm Oam Processor Aop
• Manufacturer: Infineon Technologies Corporation

40
41
42
43
44
Data Sheet
386EX:CLKOUT
386EX:DACK
386EX:CLK2
386EX:DRE
386EX:RD
Rising edge of MPDREQ after MPRD low 1
MPDREQ driven high before high
impedance
Interval between MPDREQ active
phases
(in case of successive accesses)
Interval between MPDACK inactive and
subsequent MPDREQ active
MPDREQ inactive before MPRDY active
(in case the DMA FIFO gets empty during
the current read access)
PH2
PH1
80ns
T1
+30ns RD output delay
PH2
+40ns synchronisation in ASIC
PH1

+20ns DRE output delay
T2
ASIC not ready
=> one more T2
200ns
PH2

PH1
-80ns async DRE sampling before READY
T2
PH2
ASIC
ready

6-157
1
20
20
5
Note:
Time values given in this figure are
example values and not tested in
production.
3
1
5

SYSCLK
cycles
SYSCLK
cycles
SYSCLK
cycles
SYSCLK
cycles
SYSCLK
cycles
04.2000