參數(shù)資料
型號: MC68HRC705KJ1CDW
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDSO16
封裝: SOIC-16
文件頁數(shù): 83/117頁
文件大?。?/td> 1644K
代理商: MC68HRC705KJ1CDW
Parallel I/O Ports (PORTS)
Data Sheet
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 4.0
68
Parallel I/O Ports (PORTS)
MOTOROLA
7.2.3 Pulldown Register A
Pulldown register A inhibits the pulldown devices on port A pins programmed as
inputs.
NOTE:
If the SWPDI bit in the mask option register is programmed to logic 1, reset
initializes all port A pins as inputs with disabled pulldown devices.
PDIA[7:0] — Pulldown Inhibit A Bits
PDIA[7:0] disable the port A pulldown devices. Reset clears PDIA[7:0].
1 = Corresponding port A pulldown device disabled
0 = Corresponding port A pulldown device not disabled
7.2.4 Port LED Drive Capability
All outputs can drive light-emitting diodes (LEDs). These pins can sink
approximately 10 mA of current to VSS.
7.2.5 Port A I/O Pin Interrupts
If the PIRQ bit in the mask option register is programmed to logic 1, PA0–PA3 pins
function as external interrupt pins. (See Section 5. External Interrupt Module
Address:
$0010
Bit 7
654321
Bit 0
Read:
Write:
PDIA7
PDIA6
PDIA5
PDIA4
PDIA3
PDIA2
PDIA1
PDIA0
Reset:
00000000
= Unimplemented
Figure 7-5. Pulldown Register A (PDRA)
相關(guān)PDF資料
PDF描述
MC68HRC705KJ1CS 8-BIT, UVPROM, 4 MHz, MICROCONTROLLER, CDIP16
MC68HRC705KJ1CP 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP16
MC68HLC705KJ1CDW 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDSO16
MC68HC705KJ1CP 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP16
MC68HLC705KJ1CP 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP16
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