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ATmega32HVB датащи(PDF) 217 Page - ATMEL Corporation

номер детали ATmega32HVB
подробное описание детали  8-bit Microcontroller with 16K/32K Bytes In-System Programmable Flash
PDF  273 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega32HVB датащи(HTML) 217 Page - ATMEL Corporation

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8042A–AVR–07/09
ATmega16HVB/32HVB
Table 30-13. Pin Name Mapping
Signal Name in
Programming Mode
Pin
Name
I/O
Function
RDY/BSY
PA0
O
0: Device is busy programming
1: Device is ready for new command.
BS1
PA1
I
Byte Select 1 (“0” selects low byte, “1” selects high byte).
BS2
PA2
I
Byte Select 2 (“0” selects low byte, “1” selects 2’nd high
byte).
PAGEL
PA3
I
Program Memory and EEPROM data Page Load.
RESET
RESET
I
DATA
PB7:0
I/O
Bi-directional Data bus (Output when OE is low).
WR
PC0
I
Write Pulse (Active low)
OE
PC1
I
Output Enable (Active low).
XTAL
PC2
I
XA0
PC3
I
XTAL Action Bit 0
XA1
PC4
I
XTAL Action Bit 1
Table 30-14. Pin Values Used to Enter Programming Mode
Pin
Symbol
Value
PB3
Prog_enable[3]
0
PB2
Prog_enable[2]
0
PB1
Prog_enable[1]
0
PB0
Prog_enable[0]
0
Table 30-15. XA1 and XA0 Coding
XA1
XA0
Action when XTAL1 is Pulsed
00
Load Flash or EEPROM Address (High or low address byte determined by
BS1).
0
1
Load Data (High or Low data byte for Flash determined by BS1).
1
0
Load Command
1
1
No Action, Idle



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