參數(shù)資料
型號(hào)： TC9324F
廠商： Toshiba Corporation
英文描述： Single-Chip DTS Microcontroller (DTS-20)
中文描述： 單芯片微丘（丘- 20）
文件頁(yè)數(shù)： 95/101頁(yè)
文件大?。?/td> 1831K
代理商： TC9324F
TC9324F
2002-02-08
95
MUTE Output
This is a 1-bit CMOS output port for muting control.
. MUTE Port
The MUTE port is accessed by the OUT1/IN2 instruction with the operand [CN
=
9H]. The MUTE output
is used for muting control. At such times as switching bands and turning the radio off using the I/O port 8
and HOLD input, the MUTE bit can be set to 1 to prevent linear circuit switching noise. The I/O bit and
HOLD bit control the MUTE bit.
The POL bit sets the MUTE output logic. Set depending on your specifications.
2. MUTE Output Circuit Structure
φ
L/K19P1
Y1
Y2
Y4
Y8
MUTE
I/O
POL HOLD
0: Even though
HOLD
input state changes, no change in MUTE output
1: MUTE bit set to 1 by change in
HOLD
input state
Control by change in
HOLD
input state
0: Positive logic: Directly outputs the MUTE bit.
1: Negative logic: Inverts the MUTE bit and outputs.
MUTE output polarity setting
0: Even though I/O port 8 input state changes, no change in MUTE output
1: MUTE bit set to 1 by change in I/O port 8 input state
Control by change in I/O port 8 input state
0: MUTE output L level at positive logic and H level at negative logic
1: MUTE output H level at positive logic and L level at negative logic
MUTE output setting
65
I/O bit
I/O port 8 input change signal
HOLD bit
HOLD
input change signal
POL bit
MUTE
Reset signal
MUTE bit
S
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