PNX1311EH NXP Semiconductors, PNX1311EH Datasheet - Page 152

• Manufacturer Part Number: PNX1311EH
• Manufacturer: NXP Semiconductors

Specifications of PNX1311EH

• Lead Free Status / RoHS Status: Not Compliant

PNX1300/01/02/11 Data Book
9.9
Figure
tion of the control and status fields of the AO unit. To en-
sure compatibility with future devices, any undefined or
reserved MMIO bits should be ignored when read, and
written as zeroes
The AO unit is reset by a PNX1300 hardware reset, or by
writing 0x80000000 to the AO_CTL register. The AO unit
is not affected by DSPCPU reset initiated through the
BIU_CTL register. Either reset method sets all MMIO
fields as indicated in the tables.
The timestamp counter is reset by TRI_RESET# or by
DSPCPU reset initiated through BIU_CTL. It is not affect-
ed by AO_CTL reset. This ensures that the timestamp
9-8
Figure 9-6. AO status/control field MMIO layout.
MMIO_base
0x10 2000
0x10 2004
0x10 200C
0x10 201C
0x10 2008
0x10 2010
0x10 2014
0x10 2018
0x10 2028
0x10 2020
0x10 2024
offset:
9-6,
AUDIO OUT OPERATION
Table 9-11
AO_STATUS (r/w)
AO_CTL (r/w)
AO_SERIAL (r/w)
AO_FRAMING (r/w)
AO_FREQ (r/w)
AO_BASE1 (r/w)
AO_BASE2 (r/w)
AO_SIZE (r/w)
AO_CC (r/w)
AO_CFC (r/w)
AO_TSTAMP (r/o)
PRELIMINARY SPECIFICATION
and
SER_MASTER
TRANS_ENABLE
POLARITY
Table 9-12
DATAMODE
RESET
TRANS_MODE
CLOCK_EDGE
SIGN_CONVERT
LITTLE_ENDIAN
describe the func-
31
31
31
31
31
31
SLEEPLESS
CC1_EN
WS_PULSE
CC2_EN
SSPOS[4]
27
27
27
27
27
27
CC1
23
23
23
23
23
23
NR_CHAN
counter
CCCOUNT register.
After an AO reset, 5 AO_SCK clock cycles are required
to stabilize the internal circuitry before enabling Audio
Out. This can be accomplished by programming the
AO_FREQ and AO_SERIAL registers to start AO_SCK
generation then waiting for the appropriate 5 AO_SCK
cycle interval.
Programing of the AO_SERIAL MMIO register needs to
follow the following sequence order:
• set AO_FREQ to ensure that a valid clock is gener-
• MMIO(AO_CTL)
ated (Only when AO is the master of the audio clock
system)
BASE1
BASE2
19
19
19
19
19
19
LEFTPOS
SIZE (in samples)
FREQUENCY
TIMESTAMP
stays
15
15
15
15
15
15
CC1_POS
synchronous
RESERVED
WSDIV
UDR_INTEN
HBE (Highway bandwidth error)
= 1 << 31; /* Software Reset */
HBE_INTEN
11
11
BUF2_INTEN
11
11
11
11
BUF1_ACTIVE
Philips Semiconductors
CC_BUSY
BUF1_INTEN
RIGHTPOS
UNDERRUN
ACK_UDR
CC2
with
ACK_HBE
7
7
7
7
7
7
BUF2_EMPTY
CC2_POS
BUF1_EMPTY
0
0
0
SCKDIV
the
ACK2
0
0
0
ACK1
0
0
0
3
3
3
3
3
3
SSPOS
DSPCPU
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0