參數(shù)資料
型號: MC68HC05E6MFB
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, PQFP44
封裝: PLASTIC, QFP-44
文件頁數(shù): 79/140頁
文件大?。?/td> 1584K
代理商: MC68HC05E6MFB
Input/Output Ports
Port registers
MC68HC05E6 — Rev. 1.0
Input/Output Ports
9-ports
Port G data
register (PORTG)
Port G is a 4-bit input-only port and therefore has no data direction
register associated with it.
Data direction
registers (DDRA,
DDRB, DDRC and
DDRD)
Writing a ‘1’ to any bit configures the corresponding port pin as an output;
conversely, writing any bit to ‘0’ configures the corresponding port pin as
an input.
Reset clears these registers, thus configuring all pins as inputs.
Port configuration
registers (CONFC
and CONFD)
The port configuration registers (CONFC and CONFD) are used in
conjunction with the data direction registers of ports C and D to correctly
Address bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
Port G data (PORTG)
$000C
Undened
Address bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
Port A data direction (DDRA)
$0004
0000 0000
Port B data direction (DDRB)
$0005
0000 0000
Port C data direction (DDRC)
$0006
0000 0000
Port D data direction (DDRD)
$0007
0000 0000
Address bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
Port C conguration (CONFC)
$000E
0000 0000
Port D conguration (CONFD)
$000B
0000 0000
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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