ST18-AU1 STMICROELECTRONICS [STMicroelectronics], ST18-AU1 Datasheet - Page 28

• Manufacturer Part Number: ST18-AU1
• Description: SIX-CHANNEL DOLBY AC3/MPEG2 AUDIO DECODER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST18-AU1
FIFOSR: Input FIFO status register
FIFO_FULL and FIFO_THR are cleared on reset.
FIFO_out: FIFO output data register
FORM_out: Formatter output data register
PDCR: Packet data count register
Cleared on reset.
28/87
Bit
FIFO_FULL
FIFO_EMPTY
FIFO_THR
PDC_NULL
Form_empty
-
Bit
Data
-
Bit
Data L
Data H
Bit
PDC
-
15
15
15
15
-
-
14
-
14
14
14
-
13
-
Function
Data (MSB=15, LSB=8)
RESERVED, read as 0.
Function
Data least significant byte
Data most significant byte
Function
Packet data count value in bytes. Maximum count value is 2047.
RESERVED, read as 0.
13
13
13
-
Form_e
mpty
Function
FIFO full: set and reset by hardware
FIFO empty: set and reset by hardware
FIFO threshold: set and reset by hardware
Set when PDC = 0, otherwise reset
Set when formatter empty, otherwise reset
RESERVED, read as 0.
12
12
12
12
-
DataH
Data
PDC_N
11
11
11
ULL
-
11
10
10
10
FIFO_T
HR
10
9
9
9
EMPTY
FIFO_
9
8
8
8
FIFO_F
7
7
7
ULL
-
8
6
6
6
-
7
-
PDC
5
5
5
-
6
-
5
4
4
4
-
-
DataL
4
-
3
3
3
-
3
-
2
2
2
-
2
-
1
1
1
-
1
-
0
0
0
-
0
-