參數(shù)資料
型號: MC68HC05P1AP
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP28
封裝: PLASTIC, DIP-28
文件頁數(shù): 83/124頁
文件大?。?/td> 3724K
代理商: MC68HC05P1AP
Input/Output Ports
I/O Port Programming
MC68HC05P1A Rev. 3.0
General Release Specification
Input/Output Ports
NON-DISCLOSURE
AGREEMENT
REQUIRED
NOTE:
To avoid generating a glitch on an I/O port pin, data should be written to
the I/O port data register before writing a logical 1 to the corresponding
data direction register.
At power-on or reset, all DDRs are cleared, which configures all port pins
as inputs. The DDRs are capable of being written to or read by the
processor. During the programmed output state, a read of the data
register will actually read the value of the output data latch and not the
level on the I/O port pin.
Table 7-4. Port D I/O Pin Functions
DDRD
I/O Pin
Mode
Accesses to
DDRD @ $0007
Accesses to Data
Register @ $0003
Read/Write
Read
Write
0
Input, Hi-Z
DDRD5
I/O Pin
*
1
Output
DDRD5
PD5
*Does not affect input, but stored to data register, PD7 is input-only
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關(guān)PDF資料
PDF描述
MC68HCL05P1ADW 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC05P2CFN 8-BIT, MROM, MICROCONTROLLER, PQCC32
MC68HC05P2FN 8-BIT, MROM, MICROCONTROLLER, PQCC32
MC68HC05P3DWR3 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC705P3CS 8-BIT, OTPROM, MICROCONTROLLER, CDIP28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC05P1CDW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P1CP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P1DW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P1P 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P3 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:microcomputer unit with 16-bit programmable timer