TMS320DM6443 Datasheet, PDF (177/202 Pages) Texas Instruments – Digital Media System on-Chip

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TMS320DM6443
Digital Media System on-Chip
SPRS282 – DECEMBER 2005
5.18 Audio Serial Port (ASP)
The ASP provides these functions:
• Full-duplex communication
• Double-buffered data registers, which allow a continuous data stream
• Independent framing and clocking for receive and transmit
• Direct interface to industry-standard codecs, analog interface chips (AICs), and other serially
connected analog-to-digital (A/D) and digital-to-analog (D/A) devices
• External shift clock or an internal, programmable frequency shift clock for data transfer
For more detailed information on the ASP peripheral, see the Documentation Support section for the
Audio Serial Port (ASP) Reference Guide.
5.18.1 ASP Peripheral Register Description(s)
HEX ADDRESS RANGE
0x01E0 2000
0x01E0 2004
0x01E0 2008
0x01E0 200C
0x01E0 2010
0x01E0 2014
0x01E0 2018 - 0x01E0 2023
0x01E0 2024
0x01E0 2028 - 0x01E0 2047
0x01E0 2048 - 0x01E0 3FFF
Table 5-70. ASP Register Descriptions
ACRONYM
DRR
DXR
SPCR
RCR
XCR
SRGR
–
PCR
–
–
REGISTER NAME
ASP Data Receive Register
ASP Data Transmit Register
ASP Serial Port Control Register
ASP Receive Control Register
ASP Transmit Control Register
ASP Sample Rate Generator Register
Reserved
ASP Pin Control Register
Reserved
Reserved
Peripheral and Electrical Specifications 177