HT9315 Series
LOCK function
The function aims to detect locked dialing number to
prevent a long distance call. The dialing output of the
chip is disabled if the first input key after on-off-hook is
the locked number when the lock function is enabled.
The lock function selection is listed below. This function
is implemented on the HT9315xL. The HT9315x does
not support this function.
R
K31
No
No
Yes
Yes
R
K41
No
Yes
No
Yes
Function
Keyboard operated IDD lock
Lock 0
Lock 0, 9
All keys are locked
·
F
The flash key can be selected as a digit or as a control
key by the option resistors R
K13
& R
K14
. Pressing the F
key will force the PO pin to be low for the T
F
duration and
is then followed by T
FP
(sec). T
F
can also be selected by
R
K13
, R
K14
.
·
P
Pause key. The execution of this key pauses the out-
put for the T
P
duration. T
P
can be selected by R
K21
.
·
R
Redial key. Executes redialing as well as one-key re-
dial function.
·
ST
Key definition
·
0,1,2,3,4,5,6,7,8,9 keys
These are dialing number input keys for both the pulse
mode and the tone mode operations.
·
*/T
Store key. The execution of this key actuates the store
memory function with (or without) dialing output and it
can store lock number with personal code in IDD lock
operation. During the dialing signal transmission, the
ST key is inhibited.
·
R/P
This key executes the P®T function and waits a T
P®T
duration in the pulse mode. On the other hand, the
*/T
key executes the
*
function in the tone mode.
·
#
Redial and pause function key. If it is pressed as the
first key after off-hook, this key executes the redial
function. Otherwise, it works as the pause key.
·
EM1~EM3
This is a dialing signal key for the tone mode only, no
response in the pulse mode.
·
SA
One-touch memory dialing key. For speed-calling
convenience, they provide memory dialing in either
pulse or tone mode.
·
A
Pressing this key can save the preceding dialing tele-
phone numbers. The saved number is redialed if it is
pressed again. SA will also redial the saved number if
it is the first key pressed at the off-hook state. During
the dialing signal transmission, the SA key is inhibited.
Auto key. When this key is pressed before pressing
any one of the digital keys (0~9) it executes the
two-touch memory function.
Rev. 1.20
9
October 1, 2002
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
