W91310 Datasheet, PDF (4/12 Pages) Winbond – TONE/PULSE DIALER WITH REDIAL FUNCTION

BLOCK DIAGRAM
W91310 SERIES
HKS
B/M
MODE
XT XT
SYSTEM CLOCK
GENERATION
ROW
(R1 to R4)
KEYBOARD
INTERFACE
READ/WRITE
COUNTER
RAM
COLUMN
(C1 to C4)
LOCATION
LATCH
CONTROL
LOGIC
PULSE
CONTROL
LOGIC
T/P MUTE
DP
DTMF
D/A
CONVERTER
ROW & COLUMN
PROGRAMMABLE
COUNTER
DATA LATCH
& DECODER
FUNCTIONAL DESCRIPTION
Keyboard Operation
C1 C2
1
2
4
5
7
8
*
0
• F: Flash key
• R/P: Redial and pause function key
• P→T: Pulse mode to tone mode
C3 C4
3
R1
6
F R2
9 P→T R3
# R/P R4
Normal Dialing
OFF HOOK , D1 , D2 , ..., Dn
1. D1, D2, ..., Dn will be dialed out.
2. Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits.
-4-