參數(shù)資料
型號(hào)： R5F2L3A7CNFA
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁數(shù)： 51/74頁
文件大?。?/td> 959K
代理商： R5F2L3A7CNFA
56
2588F–AVR–06/2013
ATtiny261/461/861
10.1
Ports as General Digital I/O
The ports are bi-directional I/O ports with optional internal pull-ups. Figure 10-2 shows a func-
tional description of one I/O-port pin, here generically called Pxn.
Figure 10-2. General Digital I/O
Note:
1. WRx, WPx, WDx, RRx, RPx, and RDx are common to all pins within the same port. clk
I/O,
SLEEP, and PUD are common to all ports.
10.1.1
Configuring the Pin
Each port pin consists of three register bits: DDxn, PORTxn, and PINxn. As shown in “Register
Description” on page 69, the DDxn bits are accessed at the DDRx I/O address, the PORTxn bits
at the PORTx I/O address, and the PINxn bits at the PINx I/O address.
The DDxn bit in the DDRx Register selects the direction of this pin. If DDxn is written logic one,
Pxn is configured as an output pin. If DDxn is written logic zero, Pxn is configured as an input
pin.
If PORTxn is written logic one when the pin is configured as an input pin, the pull-up resistor is
activated. To switch the pull-up resistor off, PORTxn has to be written logic zero or the pin has to
clk
RPx
RRx
RDx
WDx
PUD
SYNCHRONIZER
WDx:
WRITE DDRx
WRx:
WRITE PORTx
RRx:
READ PORTx REGISTER
RPx:
READ PORTx PIN
PUD:
PULLUP DISABLE
clk
I/O:
I/O CLOCK
RDx:
READ DDRx
D
L
Q
RESET
Q
D
Q
D
CLR
PORTxn
Q
D
CLR
DDxn
PINxn
D
ATA
B
U
S
SLEEP
SLEEP:
SLEEP CONTROL
Pxn
I/O
WPx
0
1
WRx
WPx:
WRITE PINx REGISTER
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R5F2L3A7CNFA#U0 制造商:Renesas Electronics Corporation 功能描述:R8C/L3AC 48K+4K/6K 100QFP 14X20 - Trays
R5F2L3A7CNFP#V0 功能描述:MCU 1KB FLASH 48K ROM 100-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:R8C/Lx/3AC 標(biāo)準(zhǔn)包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設(shè)備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:- 程序存儲(chǔ)器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR)
R5F2L3A7MDFA#U0 制造商:Renesas Electronics Corporation 功能描述:R8C/L3AM 48+4/6 100QFP 14X20 -40 TO +85 - Trays 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 48KB FLASH 100LQFP
R5F2L3A7MNFA#U0 制造商:Renesas Electronics Corporation 功能描述:R8C/L3AM 48+4/6 100QFP 14X20 - 制造商:Renesas Electronics Corporation 功能描述:R8C/L3AM 48+4/6 100QFP 14X20 -20 TO +85 - Trays 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 48KB FLASH 100LQFP
R5F2L3A7MNFP#V0 制造商:Renesas Electronics Corporation 功能描述:R8C/L3AM 48+4/6 100LQFP 14X14 制造商:Renesas Electronics Corporation 功能描述:R8C/L3AM 48+4/6 100LQFP 14X14 - Trays 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT 48KB FLASH 100LQFP
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