at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 595

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

35.6
35.6.1
Figure 35-3. Bidirectional AC-link Frame with Slot Assignment
6249D–ATARM–20-Dec-07
(Controller Output)
(Codec output)
Functional Description
Protocol overview
AC97RX
AC97FS
AC97TX
Slot #
TAG
TAG
0
AC-link protocol is a bidirectional, fixed clock rate, serial digital stream. AC-link handles multiple
input and output Pulse Code Modulation PCM audio streams, as well as control register
accesses employing a Time Division Multiplexed (TDM) scheme that divides each audio frame
in 12 outgoing and 12 incoming 20-bit wide data slots.
Table 35-2.
Table 35-3.
Slot #
0
1
2
3,4
5
6, 7, 8
9
10
11
12
Slot #
0
1
2
3,4
5
6
7, 8, 9
STATUS
ADDR
CMD
ADDR
1
STATUS
DATA
CMD
DATA
2
AC-link Output Slots Transmitted from the AC’97C Controller
AC-link Input Slots Transmitted from the AC’97C Controller
L Front
LEFT
PCM
PCM
3
R Front
RIGHT
PCM
4
PCM
LINE 1
LINE 1
Pin Description
TAG
Command Address Port
Command Data Port
PCM playback Left/Right Channel
Modem Line 1 Output Channel
PCM Center/Left Surround/Right Surround
PCM LFE DAC
Modem Line 2 Output Channel
Modem Handset Output Channel
Modem GPIO Control Channel
DAC
DAC
Pin Description
TAG
Status Address Port
Status Data Port
PCM playback Left/Right Channel
Modem Line 1 ADC
Dedicated Microphone ADC
Vendor Reserved
5
Center
PCM
MIC
PCM
6
AT91SAM9263 Preliminary
L SURR
RSVED
7
PCM
R SURR
RSVED
PCM
8
RSVED
PCM
LFE
9
LINE 2
LINE 2
DAC
ADC
10
11
HSET
HSET
DAC
ADC
STATUS
CTRL
12
IO
IO
595