CT8022 Datasheet, PDF (57/194 Pages) List of Unclassifed Manufacturers – VOIP/VON G.723.1, G279AB TRUESPEECH CO-PROCESSOR

Version: 1.18
PRELIMINARY/CONFIDENTIAL
TrueSpeech® Co-Processor
9.7 Record
Command (C1 = 1XXXH):
0001
11
RECMODE
0
(15-12)
(11-10)
(9-7)
(6)
0
000
TFR Mode
(5)
(4-2)
(1-0)
Status (S1):
0001
(15-12)
11
RECMODE
0
(11-10)
(9-7)
(6)
0
000
TFR Mode
(5)
(4-2)
(1-0)
9.7.1
Transfer Mode
The TFR Mode field selects the mode of data transfer used:
TFR Mode
00
01
10
11
Data Transfer Mode
Data Transfer via Software Command and Status Registers (CT8015/CT8005 protocol mode).
See sections 6 (Host Data Transfer Modes) and 9.7.4 (Record Protocol).
Not recommended for new designs.
Reserved
Reserved
Data Transfer via Host Transmit Data Buffer Access Port. Poll Sync Mode should be selected
when using this data transfer option. This data transfer mode must be selected if performing
DMA transfers using the TXDREQ and TXDACKN signals. See section on Host Data Transfer
Modes and Record Protocol.
The following C2, C3 and Data Transfer commands are required only if TFR Mode = 00 (CT8015/CT8005 protocol
mode). See section 9.7.4. These commands are used only if transferring speech data via the Software Control and
Status Registers.
For new designs using TFR Mode = [binary] 11 is recommended.
Command (C2 = 1000H):
0001
0000
0000
0000
(15-12)
(11-8)
(7-4)
(3-0)
Status (S2):
0001
F3 F2 F1 F0
(15-12) (11) (10) (9) (8)
Command (C3 =10XXH):
0001
0000
(15-12)
(11-8)
0
PEAK DTMF VALID CPF VALID DTMF DIGIT
(7)
(6)
(5)
(4)
(3-0)
REQUEST NUMBER OF WORDS TO TRANSFER
(7-0)
Status (S3):
0001
(15-12)
0000
(11-8)
ACTUAL NUMBER OF WORDS TO TRANSFER
(7-0)
CT8022A11AQC FW Revision 0118
DSP GROUP, INC., 3120 SCOTT BOULEVARD
57
SANTA CLARA, CA 95054 PH: 408 986 – 4300 FAX: 408 986 – 4490
All specifications are subject to change without prior notice.