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UCS1002-3 데이터시트(PDF) 63 Page - Microchip Technology

부품명 UCS1002-3
상세설명  Programmable USB Port Power Controller with Charger Emulation
PDF  114 Pages
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제조업체  MICROCHIP [Microchip Technology]
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UCS1002-3 데이터시트(HTML) 63 Page - Microchip Technology

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DS20006852A-page 63
UCS1002-3
10.7
Auto-Recovery Configuration
Register
The contents of this register are retained in Sleep.
The Auto-Recovery Configuration register sets the
parameters used when the Auto-Recovery Fault
Handling algorithm is invoked (see Section 7.5.1
“Auto-Recovery Fault Handling”).
Once the Auto-Recovery Fault Handling algorithm has
checked
the
overtemperature
and
back-drive
conditions, it sets the ILIM value to ITEST and then turns
ON the port power switch and starts the tRST timer. If
after the timer has expired, the VBUS voltage is less
than VTEST, then it is assumed that a short-circuit
condition is present and the Error state is reset.
bit 15-0
CHTHR[15:1]: Charge Rationing Threshold
LSB = 2.776 mAh
REGISTER 10-14: CHARGE RATIONING THRESHOLD (ADDRESS 1Ah - 1Bh) (CONTINUED)
Name
Bits Address
Cof
Default
Auto-Recovery
Configuration
81Ch
R/W
2Ah
REGISTER 10-15: AUTO-RECOVERY CONFIGURATION REGISTER (ADDRESS 1Ch)
U-x
R/W-0
R/W-1
R/W-0
R/W-1
R/W-0
R/W-1
R/W-0
—
TCYCLE[2:0]
TRST_SW[1:0]
VTST_SW[1:0]
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
Unimplemented
bit 6-4
TCYCLE[2:0]: Defines the delay (tCYCLE) after the Error state is entered before the Auto-Recovery Fault
Handling algorithm is started as shown below.
000 = 15 ms
001 = 20 ms
010 = 25 ms (default)
011 = 30 ms
101 = 40 ms
110 = 45 ms
111 = 50 ms
bit 3-2
TRST_SW[1:0]: Sets the tRST time as shown as shown below.
00 = 10 ms
01 = 15 ms
10 = 20 ms (default)
11 = 25 ms
bit 1-0
VTST_SW[1:0]: Sets the VTEST value as shown below.
00 = 250 mV
01 = 500 mV
10 = 750 mV (default)
11 = 1000 mV



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