sta003t STMicroelectronics, sta003t Datasheet - Page 27

• Manufacturer Part Number: sta003t
• Description: Mpeg 2.5 Layer Iii Audio Decoder
• Manufacturer: STMicroelectronics

The Ancillary Data extraction on STA003T can be
described as follow:
STA003T has a specific 5 bytes Ancillary Data
buffer, mapped into the I2C registers:
Since the content of Ancillary Data into an MPEG
5.3. I/O CELL DESCRIPTION
1) CMOS Tristate Output Pad Buffer, 4mA, with Slew Rate Control / Pin numbers 9, 10, 11, 20, 28
2) CMOS Bidir Pad Buffer, 4mA, with Slew Rate Control / Pin numbers 3, 12
3) CMOS Inpud Pad Buffer / Pin numbers 4, 5, 6, 8, 21, 25
4) CMOS Inpud Pad Buffer with Active Pull-Up / Pin numbers 7, 24, 26
0x5A
0x5B
0x5C
0x5D
0x59
A
EN
EN
ZI
A
A
A
ANC_DATA_1
ANC_DATA_2
ANC_DATA_3
ANC_DATA_4
ANC_DATA_5
D98AU907
D98AU905
D98AU904
D98AU906
Z
IO
Z
Z
Frame is max. 56 bytes, a specific register, to re-
quire new 5 bytes, is needed.
This register is:
The interrupt register, is sensitive to any non-zero
value written by the Microcontroller. When this
register is updated the Ancillary Data buffer is
filled up with new values and the registers
are updated (decremented) accordingly.
OUTPUT
PIN
IO
0x16
0x41
0x42
OUTPUT PIN
INPUT PIN
INPUT PIN
A
A
Z
CAPACITANCE
5pF
CMD_INTERRUPT
ANCCOUNT_H
ANCCOUNT_L
OUTPUT
CAPACITANCE
CAPACITANCE
PIN
IO
MAX LOAD
100pF
3.5pF
3.5pF
STA003T
LOAD
100pF
MAX
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