Epson S1C63558 4.14.6 Pause

CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Telephone Function)

4.14.6 Pause

This dialer allows insertion of a pause within 1 to 15 seconds between each two digits of tone signals or pulses. The pause time should be set to the PTS3–PTS0 register (FF11H) as shown in Table 4.14.6.1 before dialing.

Table 4.14.6.1 Pause time selection

	PTS			Pause time (sec)
D3	D2	D1	D0
0	0	0	0	Unavailable *
0	0	0	1	1
0	0	1	0	2
0	0	1	1	3
0	1	0	0	4
0	1	0	1	5
0	1	1	0	6
0	1	1	1	7

	PTS			Pause time (sec)
D3	D2	D1	D0
1	0	0	0	8
1	0	0	1	9
1	0	1	0	10
1	0	1	1	11
1	1	0	0	12
1	1	0	1	13
1	1	1	0	14
1	1	1	1	15

∗Do not write "0" (0000B) to the PTS register because it may cause a malfunction. At initial reset, the pause time is set to 4 seconds.

Writing data to the PTS register just defines the pause time. The actual pause operation will be activated when the PAUSE bit (FF14H•D1) is set to "1".

Figure 4.14.6.1 shows the timing chart of the pause function.

HSON	"0"
(FF18H•D3)
Data bus	2		Pause		3
Write to TCD
	"0'
(FF17H)
Write to PAUSE	"0"
(FF14H•D1)
DP	"0"
		tIDP		tPS		tIDP
XRMUTE(R11)		tMH				tMH
	"1"

XTMUTE(R10) "1"

Interrupt request

tIDP: Inter-digit pause time

tMH: Mute hold time

tPS: Pause time

Fig. 4.14.6.1(a) Pause execution timing chart in pulse mode

122 EPSON S1C63558 TECHNICAL MANUAL