![](http://datasheet.mmic.net.cn/230000/W91350_datasheet_15631419/W91350_4.png)
W91350N SERIES
- 4 -
BLOCK DIAGRAM
ROW
COLUMN
(C1 to C4)
DTMF
XT
XT
MODE
RAM
COUNTER
SYSTEM CLOCK
GENERATOR
LOCATION
LATCH
D/A
ROW & COLUMN
PROGRAMMABLE
COUNTER
DATA LATCH
& DECODER
READ / WRITE
(R1 to R4, Vx)
T/P MUTE
HFO
CONTROL
LOGIC
PULSE
CONTROL
LOGIC
KEYBOARD
INTERFACE
CONVERTER
HKS
HFI
DP/C5
H/P MUTE
FUNCTIONAL DESCRIPTION
Keyboard Operation
C1
C2
C3
C4
DP
/
C5
M1
M2
M3
SAVE
1
4
7
2
5
8
0
3
6
9
#
S
F4
A
R/P
H
R1
R2
R3
R4
V
X
/T
F1
F2
F3
S: Store function key
H: Hold function key
A: Indirect repertory memory dialing function key
R/P: Redial and pause function key
SAVE: Save function key
/T:
in tone mode and P
→
T in pulse mode
M1, ..., M3: One-touch memory
F1, ..., F4: Flash keys, F1 = 600 mS, F2 = 300 mS, F3 = 73 mS, F4 = 100 mS
Notes:
D1, ..., Dn, D1', ..., Dn': 0, ..., 9, */T, #
Mn: M1 , ..., M3 ; Ln: 0, ..., 9; Fn: F1, ..., F4