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HT68FU50 数据表(PDF) 65 Page - Holtek Semiconductor Inc

部件名 HT68FU50
功能描述  Enhanced I/O Flash Type MCU with EEPROM
PDF  244 Pages
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制造商  HOLTEK [Holtek Semiconductor Inc]
网页  http://www.holtek.com
标志 HOLTEK - Holtek Semiconductor Inc

HT68FU50 数据表(HTML) 65 Page - Holtek Semiconductor Inc

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HT68F20/HT68F30/HT68F40/HT68F50/HT68F60
HT68FU30/HT68FU40/HT68FU50/HT68FU60
Rev. 1.50
65
March 15, 2011
Input/Output Ports
Holtek microcontrollers offer considerable flexibility on their I/O ports. With the input or output designation of every pin
fully under user program control, pull-high selections for all ports and wake-up selections on certain pins, the user is
provided with an I/O structure to meet the needs of a wide range of application possibilities.
The device provides bidirectional input/output lines labeled with port names PA~PG. These I/O ports are mapped to the
RAM Data Memory with specific addresses as shown in the Special Purpose Data Memory table. All of these I/O ports
can be used for input and output operations. For input operation, these ports are non-latching, which means the inputs
must be ready at the T2 rising edge of instruction
²MOV A,[m]², where m denotes the port address. For output opera-
tion, all the data is latched and remains unchanged until the output latch is rewritten.
· I/O Register List
¨ HT68F20
Register
Name
Bit
76543210
PAWU
D7
D6
D5
D4
D3
D2
D1
D0
PAPU
D7
D6
D5
D4
D3
D2
D1
D0
PA
D7
D6
D5
D4
D3
D2
D1
D0
PAC
D7
D6
D5
D4
D3
D2
D1
D0
PBPU
¾¾
D5
D4
D3
D2
D1
D0
PB
¾¾
D5
D4
D3
D2
D1
D0
PBC
¾¾
D5
D4
D3
D2
D1
D0
PCPU
¾¾¾¾
D3
D2
D1
D0
PC
¾¾¾¾
D3
D2
D1
D0
PCC
¾¾¾¾
D3
D2
D1
D0
¨ HT68F30
Register
Name
Bit
76543210
PAWU
D7
D6
D5
D4
D3
D2
D1
D0
PAPU
D7
D6
D5
D4
D3
D2
D1
D0
PA
D7
D6
D5
D4
D3
D2
D1
D0
PAC
D7
D6
D5
D4
D3
D2
D1
D0
PBPU
¾¾
D5
D4
D3
D2
D1
D0
PB
¾¾
D5
D4
D3
D2
D1
D0
PBC
¾¾
D5
D4
D3
D2
D1
D0
PCPU
D7
D6
D5
D4
D3
D2
D1
D0
PC
D7
D6
D5
D4
D3
D2
D1
D0
PCC
D7
D6
D5
D4
D3
D2
D1
D0



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