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參數資料
| 型號： | U3762MB |
| 英文描述： | Stellaris Programming Services |
| 中文描述： | 通用電話芯片-所有的功能集成 |
| 文件頁數： | 15/23頁 |
| 文件大小： | 248K |
| 代理商： | U3762MB |
U3762MB
Preliminary Information
Rev. A1, 15-Sep-98
15 (23)
Flash (F)
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1. The dialer will execute flash break and the entire flash pause time will elapse before the next digits are dialed out.
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2. The flash key can be stored as a digit in the memory. Only one flash, however, will be released to the users.
3. The system will return to the initial state after the flash pause time has elapsed.
F
t
KID
Oscillation
HKS
KEY IN
MUTE
MASK
OSC
MFO
t
FP
3
F
t
FP
t
FB
15027
t
ITP
High
DP
Figure 10. Flash operation
t
KID
t
KRD
= key release debounce
t
PDP
= pre-digit pause
t
IDP
= inter-digit pause
t
TD
= DTMF output duration
= key active in debounce
t
ITP
t
FB
t
FP
t
P
= intertone pause
= flash break time
= flash pause time
= pause time
15028
KEY IN
DP
MUTE
MASK
EARTH
Low
Figure 11. Symbolic timing diagram: Earth function
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