Intel
®
IXP400 Digital Signal Processing (DSP) Software Version 2.5
Media Processing Resource Components
API Reference Manual
15
3.4
Tone Generation Resource Component
Resource Type:
XMPR_TNGEN
Media Processing Functions
•
Generating multiple frequency tone signals
•
Generating call progress tones
Resource-Specific Control Messages
•
XMSG_TG_PLAY
(inbound)
•
XMSG_TG_PLAY_FSK
(inbound)
•
XMSG_TG_PLAY_CMPLT
(outbound)
Parameters
Events
None.
Identifier
Description and values
Attr.
Direct
Write
XPARMID_RES_STATE
Current state (0: idle, 1: active)
R
N
XPARMID_TNGEN_VOL
Tone Generator’s volume adjustment, +15 ~ –20 in 1-dB units.
Default: 0
R/W
N
XPARMID_TNGEN_FSK_MOD
FSK modulator mode.
XPARM_TNGEN_FSK_V23
or
XPARM_TNGEN_FSK_B202
.
Default:
XPARM_TNGEN_FSK_B202
if country code set to
COUNTRY_CODE_US or COUNTRY_CODE_PRC
, otherwise
XPARM_TNGEN_FSK_V23
R/W
Y
XPARMID_TNGEN_FSK_CS
CS bit length of FSK modulator (in bit unit).
Default: 300 if country code set to
COUNTRY_CODE_US
or
COUNTRY_CODE_PRC
, otherwise 0.
R/W
Y
XPARMID_TNGEN_FSK_MARK
Mark bit length of FSK modulator (in bit unit).
Default: 180 if country code set to
COUNTRY_CODE_US
or
COUNTRY_CODE_PRC
, otherwise 100.
R/W
Y
XPARMID_TNGEN_FSK_RATE
FSK modulator baud rate (
XPARM_TNGEN_FSK_R1200
,
XPARM_TNGEN_FSK_R600, XPARM_TNGEN_FSK_R300,
XPARM_TNGEN_FSK_R150
or
XPARM_TNGEN_FSK_R75
).
Default:
XPARM_TNGEN_FSK_R1200
, i.e., 1200 bps
R/W
N
XPARMID_TNGEN_FSK_POSTMK
Postmark bit length of FSK modulator (in bit unit)
Default: 72
R/W
Y
XPARMID_TNGEN_RFC2833
RFC2833 enable flag.
XPARM_ON
or
XPARM_OFF
.
Default:
XPARM_ON
R/W
N
