參數(shù)資料
型號: SCC9521002-01C
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, 30 MHz, MICROCONTROLLER, CDIP40
封裝: SIDE BRAZED, DIP-40
文件頁數(shù): 79/109頁
文件大小: 10824K
代理商: SCC9521002-01C
57
ATtiny20 [DATASHEET]
8235E–AVR–03/2013
10.4.2 PUEA – Port A Pull-up Enable Control Register
10.4.3 PORTA – Port A Data Register
10.4.4 DDRA – Port A Data Direction Register
10.4.5 PINA – Port A Input Pins
10.4.6 PUEB – Port B Pull-up Enable Control Register
10.4.7 PORTB – Port B Data Register
10.4.8 DDRB – Port B Data Direction Register
Bit
76543210
PUEA7
PUEA6
PUEA5
PUEA4
PUEA3
PUEA2
PUEA1
PUEA0
PUEA
Read/Write
R/W
Initial Value
00000000
Bit
76543210
PORTA7
PORTA6
PORTA5
PORTA4
PORTA3
PORTA2
PORTA1
PORTA0
PORTA
Read/Write
R/W
Initial Value
00000000
Bit
76543210
DDA7
DDA6
DDA5
DDA4
DDA3
DDA2
DDA1
DDA0
DDRA
Read/Write
R/W
Initial Value
00000000
Bit
76543210
PINA7
PINA6
PINA5
PINA4
PINA3
PINA2
PINA1
PINA0
PINA
Read/Write
R/W
Initial Value
N/A
Bit
76543210
––––
PUEB3
PUEB2
PUEB1
PUEB0
PUEB
Read/Write
RRRR
R/W
Initial Value
00000000
Bit
76543210
––––
PORTB3
PORTB2
PORTB1
PORTB0
PORTB
Read/Write
RRRR
R/W
Initial Value
00000000
Bit
76543210
––––
DDB3
DDB2
DDB1
DDB0
DDRB
Read/Write
RRRR
R/W
Initial Value
00000000
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