Rainbow-electronics Atmega169L Bedienungsanleitung PDF herunterladen (Seite 277)

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101

277

ATmega169V/L

2514A–AVR–08/02

Parallel Programming

Characteristics

Figure 124. Parallel Programming Timing, Including some General Timing

Requirements

Figure 125. Parallel Programming Timing, Loading Sequence with Timing

Requirements

(1)

Note: 1. The timing requirements shown in Figure 124 (i.e., t

DVXH

XHXL

, and t

XLDX

) also apply

to loading operation.

Data & Contol

(DATA, XA0/1, BS1, BS2)

XTAL1

XHXL

WLWH

DVXH

XLDX

PLWL

WLRH

RDY/BSY

PAGEL

PHPL

PLBX

BVPH

XLWL

WLBX

BVWL

WLRL

XTAL1

PAGEL

PLXH

XLXH

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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