pnx1500 NXP Semiconductors, pnx1500 Datasheet - Page 525

• Manufacturer Part Number: pnx1500
• Description: Pnx15xx Series Connected Media Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Volume 1 of 1
Table 9: Audio Output Port Registers
PNX15XX_SER_3
Product data sheet
Bit
16:8
7:0
Offset 0x11 000C
31
30
29:22
21:13
12:4
3:0
Offset 0x11 0010
31:0
Offset 0x11 0014
31:6
5:0
Offset 0x11 0018
31:6
5:0
Symbol
WSDIV
SCKDIV
POLARITY
SSPOS4
Unused
LEFTPOS
RIGHTPOS
SSPOS
Reserved
BASE1
Unused
BASE2
Unused
AO_FRAMING—DMA Clock Domain
Reserved—DTL Clock Domain
AO_BASE1—DTL Clock Domain
AO_BASE2—DTL Clock Domain
Acces
s
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
…Continued
0x0
0x0
0
0
-
0x0
0x0
0x0
-
0x0
-
0x0
-
Value
Rev. 3 — 17 March 2006
Description
Sets the divider used to derive WS from SCK. Set to 0...511 for a
serial frame length of 1...512.
Note the frame size limitations discussed in Section 23.4.6.1 on
page 23-16.
Sets the divider used to derive SCK from OSCLK. Set to 0...255 for
division by 1...256.
0 = Serial frame starts with a WS negedge.
1 = Serial frame starts with a WS posedge.
This bit should not be changed during operation of Audio Out i.e.,
only update this bit when TRANS_ENABLE = 0.
Start/Stop bit position MSB. Note that SSPOS is a 5-bit field, while
bit SSPOS4 is non-adjacent for backwards compatibility in 16-bit/
sample modes. Program this field along with AO_FRAMING[3:0].
To ensure software backward compatibility unused or reserved bits must
be written as zeros and ignored upon read
Defines the bit position within a serial frame where the first data bit
of the left channel is placed. The first bit of a serial frame is bit 0.
Defines the bit position within a serial frame where the first data bit
of the right channel is placed.
Start/Stop bit position. Note that SSPOS is a 5-bit field, while bit
SSPOS4 is non-adjacent for backwards compatibility in 16-bit/
sample modes. Program this field along with AO_FRAMING[30].
If DATAMODE = MSB first, transmission starts with the MSB of the
sample i.e., bit 15 for 16-bit/sample modes or bit 31 for 32-bit/
sample modes. SSPOS determines the bit index (0..31) in the
parallel input word of the last transmitted data bit.
If DATAMODE = LSB first, SSPOS determines the bit index (0..31)
in the parallel word of the first transmitted data bit. Bits SSPOS up
to and including the MSB are transmitted i.e., up to bit 15 in 16-bit/
sample mode and bit 31 in 32-bit/sample mode.
To ensure software backward compatibility unused or reserved bits must
be written as zeros and ignored upon read
Base Address of DMA buffer1 in memory - must be a 64-byte
aligned address in local memory.
If changed it must be set before ACK1.
To ensure software backward compatibility unused or reserved bits must
be written as zeros and ignored upon read
Base Address of DMA buffer2 in memory - must be a 64-byte
aligned address in local memory.
If changed it must be set before ACK2.
To ensure software backward compatibility unused or reserved bits must
be written as zeros and ignored upon read
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX15xx Series
Chapter 15: Audio Output
.
.
.
.
15-18