SAM9263 Atmel Corporation, SAM9263 Datasheet - Page 621
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SAM9263
Manufacturer Part Number
SAM9263
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(153 pages)
3.SAM9260.pdf
(290 pages)
4.SAM9261.pdf
(248 pages)
5.SAM9263.pdf
(1109 pages)
6.SAM9263.pdf
(51 pages)
Specifications of SAM9263
Flash (kbytes)
0 Kbytes
Pin Count
324
Max. Operating Frequency
240 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
160
Ext Interrupts
160
Usb Transceiver
3
Usb Speed
Full Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
1
Uart
4
Can
1
Ssc
2
Ethernet
1
Sd / Emmc
2
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
Yes
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
96
Self Program Memory
NO
External Bus Interface
2
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Fpu
No
Mpu / Mmu
No / Yes
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- M40800 PDF datasheet
- M40800 PDF datasheet #2
- SAM9260 PDF datasheet #3
- SAM9261 PDF datasheet #4
- SAM9263 PDF datasheet #5
- SAM9263 PDF datasheet #6
- Current page: 621 of 1109
- Download datasheet (17Mb)
Figure 36-5. Audio Transfer (PCM L Front, PCM R Front) on Channel x
36.6.2.3
36.6.2.4
6249I–ATARM–3-Oct-11
(Controller Output)
Write access to
AC97C_THRx
(AC97C_SR)
(AC97C_SR)
TXEMPTY
TXRDYCx
AC97FS
AC97TX
Slot #
AC97 Output Frame
Receive Operation
TAG
0
transfered to the shift register
The TXEMPTY flag in the AC97 Controller Channel x Status Register (AC97C_CxSR) is set
when all requested transmissions for a channel have been shifted on the AC-link. The applica-
tion can either poll TXEMPTY flag in AC97C_CxSR or wait for an interrupt notice associated
with the same flag.
In most cases, the AC97 Controller is embedded in chips that target audio player devices. In
such cases, the AC97 Controller is exposed to heavy audio transfers. Using the polling tech-
nique increases processor overhead and may fail to keep the required pace under an operating
system. In order to avoid these polling drawbacks, the application can perform audio streams by
using PDC connected to channel A, which reduces processor overhead and increases perfor-
mance especially under an operating system.
The PDC transmit counter values must be equal to the number of PCM samples to be transmit-
ted, each sample goes in one slot.
The AC97 Controller outputs a thirteen-slot frame on the AC-Link. The first slot (tag slot or slot 0)
flags the validity of the entire frame and the validity of each slot; whether a slot carries valid data
or not. Slots 1 and 2 are used if the application performs control and status monitoring actions
on AC97 Codec control/status registers. Slots [3:12] are used according to the content of the
AC97 Controller Output Channel Assignment Register (AC97C_OCA). If the application per-
forms many transmit requests on a channel, some of the slots associated to this channel or all of
them will carry valid data.
The AC97 Controller can also receive data from AC97 Codec. Data is received in the channel’s
shift register and then transferred to the AC97 Controller Channel x Read Holding Register. To
read the newly received data, the application must perform the following steps:
• Poll RXRDY flag in AC97 Controller Channel x Status Register (AC97C_CxSR). x being one
• Read data from AC97 Controller Channel x Read Holding Register.
ADDR
of the
CMD
1
transfered to the shift register
2
PCM L Front
DATA
CMD
2
channels.
PCM R Front
L Front
3
PCM
R Front
4
PCM
LINE 1
DAC
5
Center
6
PCM
L SURR
PCM
7
R SURR
PCM
8
PCM
LFE
9
AT91SAM9263
LINE 2
DAC
10
11
HSET
DAC
CTRL
12
IO
621
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