Rainbow-electronics ATmega64M1 Manual de usuario Pagina 318

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8209A–AVR–08/09
ATmega16M1/32M1/64M1
29.10 Parallel Programming Characteristics
Figure 29-5. Parallel Programming Timing, Including some General Timing Requirements
Figure 29-6. Parallel Programming Timing, Loading Sequence with Timing Requirements
(1)
Note: 1. The timing requirements shown in Figure 29-5 (i.e., t
DVXH
, t
XHXL
, and t
XLDX
) also apply to loading 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)
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