STA014B View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STA014B
STMicroelectronics
STA014B Datasheet PDF : 45 Pages
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STA014-STA014B-STA014T
REQ_POL
Address: 0x0C (12)
Type: R/W
Software Reset: 0x01
Hardware Reset: 0x00
The REQ_POL registers is used to program the
polarity of the DATA_REQ line.
MSB
LSB
b7 b6 b5 b4 b3 b2 b1 b0
0
0
0
0
0
0
0
1
Default polarity (the source sends data when the
DATA_REQ line is high)
MSB
LSB
b7 b6 b5 b4 b3 b2 b1 b0
0
0
0
0
0
1
0
1
Inverted polarity (the source sends data when the
DATA_REQ line is low)
SCLK_POL
Address: 0x0D (13)
Type: R/W
Software Reset: 0x04
Hardware Reset: 0x04
MSB
LSB
b7 b6 b5 b4 b3 b2 b1 b0
X X X X X 0 0 0 (1)
1 0 0 (2)
X = don’t care
SCLK_POL is used to select the working polarity
of the Input Serial Clock (SCKR).
(1) If SCLK_POL is set to 0x00, the data (SDI)
are sent with the falling edge of SCKR
and sampled on the rising edge.
(2) If SCLK_POL is set to 0x04, the data (SDI)
are sent with the rising edge of SCKR and
sampled on the falling edge.
ERROR_CODE
Address: 0x0F (15)
Type: RO
Software Reset: 0x00
Hardware Reset: 0x00
MSB
LSB
b7 b6 b5 b4 b3 b2 b1 b0
X X EC5 EC4 EC3 EC2 EC1 EC0
X = don’t care
ERROR_CODE register contains the last error
occourred if any. The codes can be as follows:
Code
0x00
0x01
0x02
0x04
0x10
0x2X
0x3X
Description
No error since the last SW or HW Reset
CRC Failure
DATA not available
Ancillary data not read
Audio synch word not found
MPEG Header error
MPEG Decoding errors
SOFT_RESET
Address: 0x10 (16)
Type: WO
Software Reset: 0x00
Hardware Reset: 0x00
MSB
LSB
b7 b6 b5 b4 b3 b2 b1 b0
X
X
X
X
X
X
X
0
1
X = don’t care; 0 = normal operation; 1 = reset
When this register is written, a soft reset occours.
The STA014 core command register and the in-
terrupt register are cleared. The decoder goes in
to idle mode.
PLAY
Address: 0x13 (19)
Type: R/W
Software Reset: 0x01
Hardware Reset: 0x01
MSB
LSB
b7 b6 b5 b4 b3 b2 b1 b0
X
X
X
X
X
X
X
0
1
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.
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