參數(shù)資料
型號(hào): MQ80C52XXX-36/883
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 36 MHz, MICROCONTROLLER, CQFP44
封裝: CERAMIC, QFP-44
文件頁數(shù): 98/152頁
文件大?。?/td> 2528K
代理商: MQ80C52XXX-36/883
300
8021G–AVR–03/11
ATmega329P/3290P
27.6.1
Signal Names
In this section, some pins of the ATmega329P/3290P are referenced by signal names describ-
ing their functionality during parallel programming, see Figure 27-1 and Table 27-9. Pins not
described in the following table are referenced by pin names.
The XA1/XA0 pins determine the action executed when the XTAL1 pin is given a positive pulse.
The bit coding is shown in Table 27-11.
When pulsing WR or OE, the command loaded determines the action executed. The different
Commands are shown in Table 27-12.
Figure 27-1. Parallel Programming
Table 27-9.
Pin Name Mapping
Signal Name in
Programming Mode
Pin Name
I/O
Function
RDY/BSY
PD1
O
0: Device is busy programming, 1: Device is ready for
new command.
OE
PD2
I
Output Enable (Active low).
WR
PD3
I
Write Pulse (Active low).
BS1
PD4
I
Byte Select 1 (“0” selects low byte, “1” selects high
byte).
XA0
PD5
I
XTAL Action Bit 0
XA1
PD6
I
XTAL Action Bit 1
PAGEL
PD7
I
Program Memory and EEPROM data Page Load.
BS2
PA0
I
Byte Select 2 (“0” selects low byte, “1” selects 2’nd high
byte).
DATA
PB7-0
I/O
Bi-directional Data bus (Output when OE is low).
VCC
+5V
GND
XTAL1
PD1
PD2
PD3
PD4
PD5
PD6
PB7 - PB0
DATA
RESET
PD7
+12 V
BS1
XA0
XA1
OE
RDY/BSY
PAGEL
PA0
WR
BS2
AVCC
+5V
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