ATmega328P datasheet(325/448 Pages) ATMEL

325 / 448 page

325

8161D–AVR–10/09

ATmega48PA/88PA/168PA/328P

Figure 28-6. Parallel Programming Timing, Including some General Timing Requirements

Figure 28-7. Parallel Programming Timing, Loading Sequence with Timing Requirements(1)

Note:

1. The timing requirements shown in Figure 28-6 (i.e., tDVXH, tXHXL, and tXLDX) also apply to load-

ing operation.

Figure 28-8. Parallel Programming Timing, Reading Sequence (within the Same Page) with

Timing Requirements

(1)

Note:

1. The timing requirements shown in Figure 28-6 (i.e., tDVXH, tXHXL, and tXLDX) also apply to read-

ing 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)

XTAL1

ADDR0 (Low Byte)

DATA (Low Byte)

DATA (High Byte)

ADDR1 (Low Byte)

DATA

BS1

XA0

XA1

LOAD ADDRESS

(LOW BYTE)

READ DATA

(LOW BYTE)

READ DATA

(HIGH BYTE)

LOAD ADDRESS

(LOW BYTE)

BVDV

OLDV

XLOL

OHDZ

ATmega328P Datasheet(PDF) 325 Page - ATMEL Corporation

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