ISSUE 4.3 : November 1998
PUMA 68F16006/A-80/90/12/15
A.C Waveforms - Alternate CE controlled Program operation timings
Data Polling
5555H
tWC
PA
PA
Address
tAH
tAS
tRC
WE
tGHEL
OE
t
tCHP
tWHWH1
CP
CE
t
DF
tOE
tWS
tDH
DATA
A0H
PD
DOUT
DOUT
DQ7
tDS
tCE
tOH
V
CC
NOTES:
1. PA is address of memory location to be programmed.
2. PD is data to be programmed at byte address.
3. DQ7 is the output of the complement of the data written to the device.
4. DOUT is the output of the data written to the device.
5. Figure indicates last two bus cycles of four bus cycle sequence.
AC Waveforms for Data Polling During Embedded Algorithm Operations
t
CH
CE
tDF
tOE
OE
tOEH
tCE
WE
t
OH
*
HIGH Z
HIGH Z
DQ7=
Valid Data
DQ7
DQ7
tWHWH
1 or 2
DQ0-DQ6
= Invalid
DQ0-DQ7=
Vaild Data
DQ0-DQ6
t
OE
8
MOSAIC [ MOSAIC ]
