參數(shù)資料
型號(hào)： AS80C31-36D
廠商： TEMIC SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, 36 MHz, MICROCONTROLLER, PQCC44
文件頁數(shù)： 111/170頁
文件大?。?/td> 4133K
代理商： AS80C31-36D
45
ATtiny4/5/9/10 [DATASHEET]
8127F–AVR–02/2013
10.2.7
Program Example
The following code example shows how to set port B pin 0 high, pin 1 low, and define the port pins from 2 to 3 as
input with a pull-up assigned to port pin 2. The resulting pin values are read back again, but as previously dis-
cussed, a nop instruction is included to be able to read back the value recently assigned to some of the pins.
Note:
10.3
Alternate Port Functions
Most port pins have alternate functions in addition to being general digital I/Os. In Figure 10-6 below is shown how
the port pin control signals from the simplified Figure 10-2 on page 41 can be overridden by alternate functions.
Assembly Code Example
...
; Define pull-ups and set outputs high
; Define directions for port pins
ldi
r16,(1<<PUEB2)
ldi
r17,(1<<PB0)
ldi
r18,(1<<DDB1)|(1<<DDB0)
out
PUEB,r16
out
PORTB,r17
out
DDRB,r18
; Insert nop for synchronization
nop
; Read port pins
in
r16,PINB
...
相關(guān)PDF資料
PDF描述
AS80C51C-36D 8-BIT, MROM, 36 MHz, MICROCONTROLLER, PQCC44
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AF180C51C-36D 8-BIT, MROM, 36 MHz, MICROCONTROLLER, PQFP44
AM9080ACC 8-BIT, 2.08 MHz, MICROPROCESSOR, CDIP40
AV80C32XXX-12R 8-BIT, 12 MHz, MICROCONTROLLER, PQFP44
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