Parallel Programming Characteristics - Atmel ATmega161 Manual

Parallel Programming
Characteristics
ATmega161(L)
122
Set OE to "0", and BS to "0". The selected Signature byte can now be read at DATA.
3. Set OE to "1".
Figure 80. Parallel Programming Timing
XTAL1
t
DVXH
Data & Control
(DATA, XA0/1, BS1)
t
BVXH
PAGEL
WR
RDY/BSY
OE
DATA
t
XLWL
t
XHXL
t
XLDX
t t
PLBX
BVWL
t
PHPL
t
WLWH
t
PLWL
WLRL
t
XLOL
t
OLDV
t
RHBX
t
WLRH
t
OHDZ
1228B–09/01