BLOCK DIAGRAM
W91610 SERIES
HKS
MODE
XT XT
SYSTEM CLOCK
GENERATOR
ROW
(R1 to R4)
COLUMN
(C1 to C4)
KEYBOARD
INTERFACE
READ/WRITE
COUNTER
RAM
LOCATION
LATCH
CONTROL
LOGIC
PULSE
CONTROL
LOGIC
T/P MUTE
P MUTE
DP/C5
DTMF
D/A
CONVERTER
ROW & COLUMN
PROGRAMMABLE
COUNTER
DATA LATCH
& DECODER
FUNCTIONAL DESCRIPTION
Keyboard Operation
C1 C2 C3 C4 DP / C5
123
P→T R1
456F
P R2
789
R3
* 0#R
R4
• F: Flash key
• P→T: In pulse mode, this key works as Pulse→Tone key
P→T key can be stored as a digit in pulse or tone mode
• R: Redial function key
• P: Pause key
Normal Dialing
OFF HOOK , D1 , D2 , ..., Dn
1. D1, D2, ..., Dn will be dialed out.
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