Rainbow-electronics ATmega64C1 Manuale Utente Scaricare il pdf (Pagina 318)

100

101

318

7647A–AVR–02/08

ATmega32/64/M1/C1

25.9 Parallel Programming Characteristics

Figure 25-5. Parallel Programming Timing, Including some General Timing Requirements

Figure 25-6. Parallel Programming Timing, Loading Sequence with Timing Requirements

(1)

Note: 1. The timing requirements shown in Figure 25-5 (i.e., t

DVXH

, t

XHXL

, and t

XLDX

) also apply to load-

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)

1 2 ... 313 314 315 316 317 318 319 320 321 322 323 ... 365 366

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