PNX1700EH,557 NXP Semiconductors, PNX1700EH,557 Datasheet - Page 527
PNX1700EH,557
Manufacturer Part Number
PNX1700EH,557
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1700EH557.pdf
(832 pages)
Specifications of PNX1700EH,557
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Not Compliant
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Philips Semiconductors
Volume 1 of 1
Table 9: Audio Output Port Registers
PNX17XX_SER_1
Preliminary data sheet
Bit
3
2
1
0
Offset 0x11 0004
31
30
29:28
27
26:25
24
23
22
Symbol
UNDERRUN
HBE
BUF2_EMPTY
BUF1_EMPTY
RESET
TRANS_ENABLE
TRANS_MODE
SIGN_CONVERT
Unused
CC1_EN
CC2_EN
WS_PULSE
AO_CTL—DTL Clock Domain
Acces
s
R
R
R
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
…Continued
0
0
0
0
0
0
00
0
-
0
0
0
Value
Rev. 1 — 17 March 2006
Description
An UNDERRUN error has occurred i.e., the system controller/
software failed to provide a full DMA buffer in memory in time and
no new samples were transmitted. The last sample or sample pairs
were sent to the D/A converter.
If UDR_INTEN is also ‘1’, an interrupt request is pending. The
UNDERRUN flag can ONLY be cleared by writing an ‘1’ to
ACK_UDR.
Bandwidth Error indicates that no new data was transmitted due to
an inability of the DMA interface adapter to provide the required
data in time for the start of a new frame. The last data set is
repeated. If HBE_INTEN is an ‘1’, then an interrupt is also sent to
the system. The HBE flag stays set until an ‘1’ is written to
ACK_HBE.
1= buffer 2 is empty.
If BUF2_INTEN is also ‘1’, an interrupt request is asserted.
BUF2_EMPTY is cleared by writing a ‘1’ to ACK2, at which point the
Audio Out hardware will assume that AO_BASE2 and AO_SIZE
describe a new full DMA buffer in memory.
1= buffer 1 is empty.
If BUF1_INTEN is also ‘1’, an interrupt request is asserted.
BUF1_EMPTY is cleared by writing a ‘1’ to ACK1, at which point the
Audio Out hardware will assume that AO_BASE1 and AO_SIZE
describe a new full DMA buffer in memory.
Resets the Audio Out logic. See
description of software reset.
Transmission Enable flag
0 = Audio Out is inactive.
1 = Audio Out transmits samples and acts as DMA master to read
samples from local memory.
Do not change any of the framing configurations while transmission
is enabled.
00 = Mono, 32 bits/sample. Left and right data sent to each active
output are the same.
01 = Stereo, 32 bits/sample
10 = Mono, 16 bits/sample. Left and right data are the same.
11 = Stereo, 16 bits/sample
0 =Leave MSB unchanged.
1 = Invert MSB (not applied to codec control fields).
To ensure software backward compatibility unused or reserved bits
must be written as zeros and ignored upon read
0 = CC1 emission disabled.
1 = CC1 emission enabled.
0 = CC2 emission disabled.
1 = CC2 emission enabled.
0 = Emit 50% WS.
1 = Emit single SCK cycle WS.
Section 3.2 on page 15-14
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX17xx Series
Chapter 15: Audio Output
for a
15-16
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