sta335bwsqs13tr STMicroelectronics, sta335bwsqs13tr Datasheet - Page 60

• Manufacturer Part Number: sta335bwsqs13tr
• Description: 2.1-channel, High-efficiency Digital Audio System With Qsound Qhd
• Manufacturer: STMicroelectronics

Register description
6.15
6.16
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Fault detect recovery constant registers (addr 0x2B to 0x2C)
FDRC bits specify the 16-bit fault detect recovery time delay. When FAULT is asserted, the
TRISTATE output is immediately asserted low and held low for the time period specified by
this constant. A constant value of 0x0001 in this register is approximately 0.083 ms. The
default value of 0x000C specifies approximately 0.1 ms.
Device status register (addr 0x2D)
This read-only register provides fault and thermal-warning status information from the power
control block. Logic value 1 for faults or warning means normal state. Logic 0 means a fault
or warning detected on power bridge. The PLLUL = 1 means that the PLL is not locked.
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FDRC15
FDRC7
PLLUL
D7
D7
D7
PLLUL: 0 = PLL locked, 1 = PLL not locked.
FAULT: 0 = fault detected on power bridge, 1 = normal operation
UVFAULT: 0 = VCCx internally detected < undervoltage threshold.
OVFAULT: 0 = VCCx internally detected > overvoltage threshold.
OCFAULT: 0 = overcurrent fault detected
OCWARN: 0 = overcurrent warning.
TFAULT: 0 = thermal fault. Junction temperature over limit detection.
TWARN: 0 = thermal warning. The junction temperature is close to the fault condition.
0
0
FDRC14
FDRC6
FAULT
D6
D6
D6
0
0
UVFAULT
FDRC13
FDRC5
D5
D5
D5
0
0
OVFAULT
FDRC12
FDRC4
D4
D4
D4
0
0
OCFAULT
FDRC11
FDRC3
D3
D3
D3
0
1
OCWARN
FDRC10
FDRC2
D2
D2
D2
0
1
TFAULT
FDRC9
FDRC1
D1
D1
D1
0
0
STA335BWSQS
TWARN
FDRC8
FDRC0
D0
D0
D0
0
0