sta013b STMicroelectronics, sta013b Datasheet - Page 14

• Manufacturer Part Number: sta013b
• Description: Mpeg 2.5 Layer Iii Audio Decoder
• Manufacturer: STMicroelectronics

STA013 - STA013B - STA013T
Hardware Reset: 0x01
The REQ_POL registers is used to program the
polarity of the DATA_REQ line.
Default polarity (the source sends data when the
DATA_REQ line is high)
Inverted polarity (the source sends data when the
DATA_REQ line is low)
SCKL_POL
Address: 0x0D
Type: R/W
Software Reset: 0x04
Hardware Reset: 0x04
X = don’t care
SCKL_POL is used to select the working polarity
of the Input Serial Clock (SCKR).
(1) If SCKL_POL is set to 0x00, the data (SDI)
(2) If SCKL_POL is set to 0x04, the data (SDI)
ERROR_CODE
Address: 0x0F
Type: RO
Software Reset: 0x00
Hardware Reset: 0x00
X = don’t care
14/38
MSB
MSB
MSB
MSB
b7
b7
b7
b7
X
X
0
0
are sent with the falling edge of SCKR
and sampled on the rising edge.
are sent with the rising edge of SCKR and
sampled on the falling edge.
b6
b6
X
X
b6
b6
0
0
b5
b5
X
X
b5
b5
0
0
b4
b4
X
X
b4
b4
0
0
b3
b3
X
0
0
0
b3
b3
0
0
b2
b2
0
1
0
0
0
b2
b2
0
1
b1
b1
0
0
0
0
1
b1
b1
0
0
LSB
LSB
b0
b0
0
0
0
1
0
LSB
LSB
b0
b0
1
1
(1)
(2)
(1)
(2)
(3)
ERROR_CODE register contains the last error
occourred if any. The codes can be as follows:
SOFT_RESET
Address: 0x10
Type: WO
Software Reset: 0x00
Hardware Reset: 0x00
X = don’t care; 0 = normal operation; 1 = reset
When this register is written, a soft reset occours.
The STA013 core command register and the in-
terrupt register are cleared. The decoder goes in
to idle mode.
PLAY
Address: 0x13
Type: R/W
Software Reset: 0x01
Hardware Reset: 0x01
X = don’t care; 0 = normal operation; 1 = play
The PLAY command is handled according to the
state of the decoder, as described in section 2.5.
PLAY only becomes active when the decoder is
in DECODE mode.
MSB
MSB
b7
b7
(1)
(2)
(3)
X
X
Code
0x00 No error since the last SW or HW Reset
0x01
0x02
b6
b6
X
X
b5
b5
X
X
b4
b4
X
X
DATA not available
Description
CRC Failure
b3
b3
X
X
b2
b2
X
X
b1
b1
X
X
LSB
LSB
b0
b0
0
1
0
1