ST90135M5Q6 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST90135M5Q6' PDF : 190 Pages View PDF
ST90158 - EXTERNAL MEMORY INTERFACE (EXTMI)
EXTERNAL MEMORY SIGNALS (Cont’d)
Figure 44. Effects of DS2EN on the behavior of DS and DS2
n
NO WAIT CYCLE
T1
T2
1 DS WAIT CYCLE
T1
T2
SYSTEM
CLOCK
AS (MC=0)
DS STRETCH
DS2EN=0 OR (DS2EN=1 AND UPPER MEMORY ADDRESSED):
DS
(MC=0)
DS
(MC=1, READ)
DS
(MC=1, WRITE)
DS2
DS2EN=1 AND LOWER MEMORY ADDRESSED:
DS
DS2
(MC=0)
DS2
(MC=1, READ)
DS2
(MC=1, WRITE)
83/190
9
Share Link: 
