Rainbow Electronics ATmega64C1 - Manual (Page 303)

303
7647A–AVR–02/08
ATmega32/64/M1/C1
24.8.15 Parallel Programming Characteristics
Figure 24-7. Parallel Programming Timing, Including some General Timing Requirements
Figure 24-8. Parallel Programming Timing, Loading Sequence with Timing Requirements (1)
Note: 1. The timing requirements shown in Figure 24-7 (i.e., t
DVXH
, t
XHXL
, and t
XLDX
) also apply to load-
ing operation.
Data & Contol
(DATA, XA0/1, BS1, BS2)
XTAL1
t
XHXL
t
WLWH
t
DVXH
t
XLDX
t
PLWL
t
WLRH
WR
RDY/BSY
PAGEL t
PHPL
t
PLBX
t
BVPH
t
XLWL
t
WLBX
t
BVWL
WLRL
XTAL1
PAGEL
t
PLXH XLXH
t
t
XLPH
ADDR0 (Low Byte) DATA (Low Byte) DATA (High Byte) ADDR1 (Low Byte) DATA
BS1
XA0
XA1
LOAD ADDRESS
(LOW BYTE)
LOAD DATA
(LOW BYTE)
LOAD DATA
(HIGH BYTE)
LOAD DATA LOAD ADDRESS
(LOW BYTE)