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參數資料
| 型號： | UPD17006AGF-011 |
| 廠商： | NEC Corp. |
| 英文描述： | LJT 46C 40#20 4#16 2#8(COAX) |
| 中文描述： | 4位單片機帶預分頻器的微控制器，鎖相環(huán)頻率合成器，如果汽車調頻，兆瓦，和LW收音機計數器 |
| 文件頁數： | 48/72頁 |
| 文件大小： | 677K |
| 代理商： | UPD17006AGF-011 |
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48
μ
PD17006AGF-011
A traffic information announcement is identified as follows:
When broadcasting of TP = 1
It is judged that traffic information is received when TA = 1.
When TP = 0 and TA = 1
Traffic information is provided by the station whose PI is included in the group type 14B that was sent.
Traffic information is selected as follows:
When TP = 1
When TA = 1, the TA/DK pin (pin 25) outputs low level. If tape/CD mode is set at this time, radio mode
is set.
When TA = 0, the TA/DK pin outputs high level, and the original mode is set.
When TP = 0 and TA = 1
Group type 14B is sent. When the network TA of the other station = 1, and the station given by PI
indicated in block 4 is stored in a preset or pool memory, all the AF lists are checked. The station with
the highest signal meter level from the stations whose PI coincide is selected and received.
If no station whose PI coincides is found, a PI search operation is performed (refer to
4.1.4 (3) PI search
operation
).
In radio mode, mute is canceled when a new broadcast is selected, and that broadcast is received. The
TP and TA of that broadcast are then checked. If both TP and TA do not become 1 within 4 seconds, the
original broadcast is received. In this case, selection by 14B for that PI is not made for 4 seconds.
When both TP and TA become 1, the TA/DK pin outputs the low level.
In the tape/CD mode, the TP and TA of the broadcast that has been selected are checked. If both TP and
TA do not become 1 within 4 seconds, the original broadcast is received.
If both TP and TA become 1, TA/DK pin outputs low level, and radio mode is set.
In both the radio and tape/CD modes, if TP = 1 and TA = 0 later, the TA/DK pin outputs high level and the
original station is received.
At this time, even if 14B is received, if TA of the network of the other station = 0, the reception mode
continues.
If the RDS signal is no longer received after the new broadcast is selected, the original broadcast is
received.
G
Alarm when a traffic information station is no longer received
(1) If 30 seconds have passed since a received traffic information station is no longer judged as such
(except when traffic information from another station is received by EON)
In radio mode
: The SK mute pin (pin 23) outputs low level, and an alarm is
output (from pin 28) 3 seconds later.
In a mode other than radio mode: A Traffic information station is searched for throughout the
band.
(2) If the frequency is changed while ALARM (pin 28) is being output (if the newly selected broadcast
is not traffic information)
When the alarm stops temporarily and mute (pin 24) is canceled, SK mute is output overlapped with
that mute, and alarm is output 3 seconds later.
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