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| 型号： | L9952GXPTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO36 |
| 封装： | LEAD FREE, SSO-36 |
| 文件页数： | 59/68页 |
| 文件大小： | 859K |
| 代理商： | L9952GXPTR |
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SPI control and status registers
L9952GXP
Doc ID 13518 Rev 5
Note:
RES = reserved bits.
8.1.5
Status register 1
The contents of the status register 1 can be read implicitly, while accessing the control
register 1.
INH
Wakeup initiated through INH source
LIN
Wakeup initiated through LIN source
Cold Start
Set to high when the internal Power on Reset occurs.
Will be cleared with the first SPI access.
Table 55.
Configuration bit SHT5V2, WUx, INH, LIN and Cold Start (continued)
Name/state
Definition/function
Table 56.
Status register 1
LIN state
WD resets
5V restarts
State
Bit
21
20
19
18
17
16
15
14
13
12
11
10
98
7654
3210
Access
r
Reset
0
Name
RES
DOM
TXD
SHT
BAT
SHT
GND
TRIG
WD
3
WD
2
WD
1
WD
0
R2
R1
R0
ST1
ST0
V2
Fail
V1
Fail
TSD
2
TSD
1
TW
UV
OV
Table 57.
Configuration bit OV, UV, TW, TSDx and Vx Fail
Name
Definition, function
OV
Over voltage failure of Vs.
UV
Under voltage failure of Vs.
TW
Temperature Warning: the chip temperature exceeds 130°C
TSD1
Thermal shutdown #1: The chip temperature exceeds 140°C
All Outputs, except the voltage regulator 1 are switched off.
TSD2
Thermal shutdown #2: The chip temperature exceeds 155°C
All Outputs, including the voltage regulator 1 are switched off.
V1 Fail
The output of Voltage Regulator 1 failed for at least 2s. Conditions: (V1<2V for >2s)
OR (V1<2V at 4ms after turn-on). ‘1’= fail
V2 Fail
The output of Voltage Regulator 2 failed for at least 2s. Conditions: (V2<2V for >2s)
OR (V2<2V at 4ms after turn-on). ‘1’= fail
Table 58.
Configuration bit STx
Name
Mode
ST1
ST0
0
Active mode
0
1
V1-standby -> a readout is wake up condition -> active mode -> 00 is read
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