PNX1702EH/G,557 NXP Semiconductors, PNX1702EH/G,557 Datasheet - Page 515
PNX1702EH/G,557
Manufacturer Part Number
PNX1702EH/G,557
Description
IC MEDIA PROC 500MHZ 456-BGA
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1702EHG557.pdf
(832 pages)
Specifications of PNX1702EH/G,557
Applications
Multimedia
Core Processor
TriMedia
Controller Series
Nexperia
Ram Size
208K x 8
Interface
I²C, 2-Wire Serial
Number Of I /o
61
Voltage - Supply
1.33 V ~ 1.47 V
Operating Temperature
0°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
456-HBGA
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Program Memory Type
-
Lead Free Status / Rohs Status
Compliant
Other names
935281647557
PNX1702EH/G
PNX1702EH/G
PNX1702EH/G
PNX1702EH/G
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Philips Semiconductors
Volume 1 of 1
Table 2: Operating Modes and Memory Formats
PNX17XX_SER_1
Preliminary data sheet
NR_CHAN
00
00
01
01
10
10
11
11
Figure 2:
16 bit, stereo,
NR_CHAN=00
16 bit, stereo,
NR_CHAN=10
32 bit, stereo,
NR_CHAN=00
Examples of Audio Out Memory DMA Formats
SD[0].left
SD[0].left
MODE
mono
stereo
mono
stereo
mono
stereo
mono
stereo
adr
adr
2.2.1 Endian Control
2.2 Memory Data Formats
SD[0].left
n
n
adr
SD[0].right
SD[0].right
The Audio Out unit autonomously obtains samples from memory in 16 or 32-bit per
sample memory formats, as shown in
from increasing memory address locations.
The Audio Out implements a double buffering scheme in memory to ensure that there
are always samples available to transmit, even if the system controller is highly
loaded and slow to respond to interrupts. The software assigns two equal size buffers
in memory by writing 2 base addresses and a sample size to the corresponding
MMIO registers described in
Prior to output transmission, if SIGN_CONVERT = 1, the MSB of the memory data is
inverted. This allows the use of external two’s complement 16-bit D/A converters to
generate audio from 16-bit unsigned samples. This MSB inversion also applies to the
‘0’ values transmitted to non-active output channels.
Note that the Audio Out hardware does not support A-law or m-law data formats. If
such formats are desired, the system DSP processor should be used to convert from
A-law or m-law data to 16-bit linear data.
Audio Out expects data to be supplied in little endian byte ordering mode. In little
endian byte ordering mode, the least significant byte has the lowest memory address.
•
adr+2
adr+2
n
Destination of Successive Samples
SD[0].left
SD[0].left, SD[0].right
SD[0].left, SD[1].left
SD[0].left, SD[0].right, SD[1].left, SD[1].right
SD[0].left, SD[1].left, SD[2].left
SD[0].left, SD[0].right, SD[1].left, SD[1].right, SD[2].left, SD[2].right
SD[0].left, SD[1].left, SD[2].left, SD[3].left
SD[0].left, SD[0].right, SD[1].left, SD[1].right, SD[2].left, SD[2].right, SD[3].left, SD[3].right.
Complex serial frames of up to 512 bits/frame
n+1
n
SD[0].left
SD[1].left
adr+4
adr+4
SD[0].right
Rev. 1 — 17 March 2006
n+1
n
adr+4
SD[0].right
SD[1].right
n
adr+6
adr+6
Section 4. on page
n+1
n
SD[0].left
SD[2].left
Figure
adr+8
adr+8
SD[0].left
n+2
adr+8
n
2. Successive samples are always read
SD[0].right
SD[2].right
15-15.
n+1
adr+10
adr+10
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
n+2
n
PNX17xx Series
Chapter 15: Audio Output
SD[0].left
SD[0].left
adr+12
adr+12
SD[0].right
adr+12
n+3
n+1
SD[0].right
SD[0].right
adr+14
adr+14
n+1
n+3
n+1
15-4
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