參數(shù)資料
型號: S1C63567F0A0100
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, PQFP144
封裝: PLASTIC, QFP-144
文件頁數(shù): 30/172頁
文件大?。?/td> 1349K
代理商: S1C63567F0A0100
S1C63567 TECHNICAL MANUAL
EPSON
115
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Telephone Function)
tTD
tMH
tTD:
tTIP:
tMH:
"0"
tTIP
Tone duration time
Tone inter-digit pause time
Mute hold time
"0"
HSON
(FF18HD3)
Data bus
Write to TCD
(FF17H)
DP
TONE
XRMUTE(R11)
XTMUTE(R10)
Interrupt
request
"1"
58
9
7
Fig. 4.14.4.2 Tone output timing chart
By writing data to the TCD register, the TONE terminal outputs the specified tone signal. At the same
time, the XTMUTE (R10) terminal goes Low level.
The minimum tone duration time (
tTD) can be selected as 94 msec or 47 msec when the DTS function is
selected by mask option. The minimum tone duration time can be prolonged using the CTO register
(FF16HD3). When the CTO register is set to "1" before writing data to the TCD register, the tone output
continues until "0" is written to the CTO register.
When the tone signal has been output completely, the TONE terminal returns to Low level, then a 94
msec of inter-digit pause will be inserted.
An interrupt occurs when the inter-digit pause time has passed. It allows transmission of the next tone.
The XTMUTE (R10) terminal keeps on Low level for 4 msec of mute hold time (
tMH) after the inter-digit
pause is released. If the next tone output does not start in this period, the XTMUTE (R10) terminal returns
to High level. When the next tone output starts in the mute hold period, the XTMUTE (R10) terminal will
stay in Low level.
Note that the CTMUT register (FF18HD0) and CRMUT register (FF18HD1) must be set to "1" when the
above mute function (XTMUTE and XRMUTE control) is used.
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