CDB6422 Cirrus Logic Inc, CDB6422 Datasheet - Page 10

• Manufacturer Part Number: CDB6422
• Description: Development Kit
• Manufacturer: Cirrus Logic Inc

Specifications of CDB6422

• Silicon Manufacturer: Cirrus Logic
• Application Sub Type: Telephone
• Kit Application Type: Communication & Networking
• Silicon Core Number: CS6422
• Description/function: Audio DSPs
• Operating Supply Voltage: 5 V to 12 V
• Product: Audio Modules
• Kit Contents: Evaluation Board
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: CS6422

3.2.8
3.2.9
3.2.10
3.2.11 on_hook - DAA On Hook
3.2.12 d_reset - DTMF Transceiver Reset
10
work connection)
the call)
switch(es) 1..9 have been switched up (han-
dles multiple switches)
Returns the CS6422 register(s) to the state
prior to the the respective 'swd' event
switches are down) and pushes “swu [1..8]”
onto the MSGStack to reflect the current
state of the DIP switches
1. Saves the current state of the CS6422
2. Configures the CS6422 register(s) ac-
A. Notifies microcontroller that DIP
B. No MSG Stack pushes
C. Description:
A. Polls the DIP switches (assumes all
B. No arguments accepted
A. Places DAA OFF-HOOK (enables net-
B. No arguments accepted
C. No MSG Stack pushes
A. Places DAA ON-HOOK (disconnects
B. No arguments accepted
C. No MSG Stack pushes
A. Resets the DTMF transceiver
B. No arguments accepted
C. No MSG Stack pushes
swu [1..9] - Switch Up
swp - Poll Dip Switches
off_hook - DAA Off Hook
register(s) bits to be changed in eeprom
cording to the switch function
3.2.13 doff - DTMF Transmit Off
3.2.14 dtmf [x] - DTMF Transmit On
3.2.15 kd [0..e] - Keypad Down Event
3.2.16 ku [0..e] - Keypad Up Event
3.2.17 st [x] - Single Tone Transmit On
3.2.18 pd [1..4] - Push Button Down Event
have been released
Mode (DTMF, LOAD, RECALL, STORE)
a single tone of frequency associated with
integer 'x' (see table below)
[1..4] have been pressed
button number:
DTMF transceiver (dual and single tones).
tone associated with a telephone key 'x'
being pressed
Keypad Mode (DTMF, LOAD, RECALL,
STORE)
A. Stops transmission of any tone from the
B. No arguments accepted
C. No MSG Stack pushes
A. Causes DTMF Transceiver to transmit
B. No MSG Stack pushes
A. Message indicating that key(s) [0..e] are
B. Pushes to MSG Stack depending on
A. Message indicating that key(s) [0..e]
B. Pushes to MSG Stack depend on Keypad
A. Tells the DTMF transceiver to transmit
B. No pushes to MSG Stack
A. Message indicating that push button(s)
B. Pushes to MSG Stack are according to
Button 1 - 6422_RST - initiates a CS6422
Button 2 - LOAD
reset
1st push: next 4 'kd [x]' events will
CDB6422
DS295DB2