參數(shù)資料
型號(hào)： HMS81C2020AK
廠商： Electronic Theatre Controls, Inc.
英文描述： INDCTR, PWR, SMT 3.3UH, 15%, 4.6 A
中文描述： CMOS單芯片8位微控制器與A / D轉(zhuǎn)換器
文件頁(yè)數(shù)： 43/107頁(yè)
文件大小： 1482K
代理商： HMS81C2020AK
HMS81C2012A/2020A
SEP. 2004 Ver 2.00
39
R7 and R7IO register:
R7 is a 4-bit bidirectional I/O port
(address 0CE
H
). Each port can be set individually as input
and output through the R7IO register (address 0CF
H
).
R73~R70 ports are multiplexed with Analog Input Port
AN8~AN11). R74, R75 ports are alternate function of
SXI, SXO ports
.
R74, R75 ports can be set individually as
input and output through the R7IO register.
The control register R7FUNC (address 0F8
H
) controls to
select alternate function. After reset, this value is "0", port
may be used as general I/O ports. To select alternate func-
tion such as Analog Input, write "1" to the corresponding
bit of R7FUNC. Regardless of the direction register R7IO,
R7FUNC is selected to use as alternate functions, port pin
can be used as a corresponding alternate features.
Port Pin
Alternate Function
R70
R71
R72
R73
SXI
SXO
AN8 (ADC input 8)
AN9 (ADC input 9)
AN10 (ADC input 10)
AN11 (ADC input 11)
R74(included Internal Pull-up Resister)
R75(included Internal Pull-up Resister)
R7 Function Selection Register
R7FUNC
ADDRESS : 0F8
RESET VALUE : ----0000
B
0: R70
1: AN8
0
0: R71
1: AN9
0: R73
1: AN11
0: R72
1: AN10
1
2
3
R7 Direction Register
R7IO
ADDRESS : 0CF
RESET VALUE : --000000
B
Port Direction
0: Input
1: Output
R7 Data Register
R7
ADDRESS: 0CE
RESET VALUE: Undefined
R73 R72 R71 R70
Input / Output data
-
-
-
-
-
-
-
-
R74
R75
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參數(shù)描述
HMS81C2020ALQ 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
HMS81C2020AQ 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
HMS81C20XXA 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
HMS81C20XXA-HK 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
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