Network Router User Manual

TMS380C26
NETWORK COMMPROCESSOR
SPWS010A–APRIL 1992–REVISED MARCH 1993
POST OFFICE BOX 1443 • HOUSTON, TEXAS
77251–1443
76
PARAMETER MEASUREMENT INFORMATION
(High)
Valid
Output Data Valid
SADH0–SADH7,
SADL0–SADL7,
SPH, SPL
SDTACK
†
SDBEN
SDDIR
SUDS,
SLDS
SRNW
SIACK
SCS, SRSX,
SRS0, SRS1
260
282a
275
283R
273
268
272
HI-Z
HI-Z HI-Z
HI-Z
261
261a
267
259
276
255
282R
286
279
273a
†
SDTACK
is an active-low bus ready signal. It must be asserted before data output.
Figure 37. 68xxx DIO Read Timing