PNX1500E NXP Semiconductors, PNX1500E Datasheet - Page 524
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PNX1500E
Manufacturer Part Number
PNX1500E
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1500E.pdf
(828 pages)
Specifications of PNX1500E
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NXP Semiconductors
Volume 1 of 1
Table 9: Audio Output Port Registers
PNX15XX_PNX952X_SER_N_4
Product data sheet
Bit
21:8
7
6
5
4
3
2
1
0
Offset 0x11 0008
31
30
29
28:19
18:17
Symbol
Unused
UDR_INTEN
HBE_INTEN
BUF2_INTEN
BUF1_INTEN
ACK_UDR
ACK_HBE
ACK2
ACK1
SER_MASTER
DATAMODE
CLOCK_EDGE
Unused
NR_CHAN
AO_SERIAL—DTL Clock Domain
Acces
s
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
…Continued
-
0
0
0
0
0
0
0
0
0
0
0
-
00
Value
Rev. 4.0 — 03 December 2007
Description
To ensure software backward compatibility unused or reserved bits
must be written as zeros and ignored upon read
UNDERRUN Interrupt Enable.
0 = No interrupt for UNDERRUN condition
1 = Interrupt if an UNDERRUN error occurs.
HBE Interrupt Enable:
0 = No interrupt for HBE condition
1 = Interrupt if a data bus bandwidth error occurs.
Buffer 2 Empty Interrupt Enable:
0 = No interrupt when DMA buffer is empty.
1 = Interrupt if DMA buffer 2 in memory is empty.
Buffer 1 Empty Interrupt Enable:
0 = No interrupt when DMA buffer 1 is empty.
1 = Interrupt if DMA buffer 1 in memory is empty.
Write a 1 to clear the UNDERRUN flag and remove any pending
UNDERRUN interrupt request. ACK_UDR always reads 0.
Write a 1 to clear the HBE flag and remove any pending HBE
interrupt request. ACK_HBE always reads as 0.
Write a 1 to clear the BUF2_EMPTYflag and remove any pending
BUF2_EMPTY interrupt request. AO_BASE2 is then used to fetch
buffer1 data from memory. ACK2 always reads 0.
Write a 1 to clear the BUF1_EMPTY flag and remove any pending
BUF1_EMPTY interrupt request. AO_BASE1 is then used to fetch
buffer1 data from memory. ACK1 always reads 0.
0 = The D/A subsystem is the timing master over the Audio Out
serial interface. SCK and WS act as inputs.
1 = AO is the timing master over serial interface. SCK and WS act
as outputs.
The SER_MASTER bit should only be changed while Audio Out is
disabled i.e.,TRANS_ENABLE = 0.
0 = Data is transmitted MSB first.
1 = Data is transmitted LSB first.
0 = The parallel-to-serial converter samples WS on positive edges
of SCK and outputs data on the negative edge of SCK.
1 = The parallel-to-serial converter samples WS on negative edges
of SCK and outputs data on positive edges of SCK.
To ensure software backward compatibility unused or reserved bits must
be written as zeros and ignored upon read
00 = Only SD[0] is active.
01 = SD[0] and SD[1] are active.
10 = SD[0], SD[1], and SD[2] are active.
11 = SD[0], SD[1], SD[2] and SD[3] are active.
Each SD output receives either 1 or 2 channels depending on
TRANS_MODE. Non-active channels receive 0 value samples. In
mono modes, each channel of a SD output receives identical left
and right samples.
PNX15xx/952x Series
Chapter 15: Audio Output
.
© NXP B.V. 2007. All rights reserved.
15-524
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