參數(shù)資料
型號(hào)： P95020ZLLG8
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 電源管理
英文描述： 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA124
封裝： LLGA-124
文件頁(yè)數(shù)： 34/137頁(yè)
文件大?。?/td> 3533K
代理商： P95020ZLLG8
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P95020 / Preliminary Datasheet
Revision 0.7.10
129
2010 Integrated Device Technology, Inc.
16.6.6
INTERNAL LDO POWER GOOD REGISTER
The LDO_STATUS2 Register contains power good bits for internal LDOs: VDD_AUDIO33, VDD_CKGEN18 and
VDD_CKGEN33.
IC Address = Page-0: 113(0x71), C Address = 0xA071
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
0
VDD_AUDIO33_PG
N/A
R
0 = Power NOT Good
1 = Power IS Good
Power Good Status for AUDIO33 LDO
1
VDD_CKGEN18_PG
N/A
R
Power Good Status for CKGEN18 LDO
2
VDD_CKGEN33_PG
N/A
R
Power Good Status for CKGEN33 LDO
[7:3]
RESERVED
00000
b
R
RESERVED
16.6.7
LOW POWER LDO VOLTAGE REGISTER
The LDO_LP Voltage Register contains one voltage select bit.
LDO_LP_VOL: IC Address = Page-0: 114(0x72), C Address = 0xA072
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
0
LDO_LP_VOL
0b
RW
0 = 3.3 V
1 = 3.0 V
Select “Always-On” LDO Output Voltage (Default = 3.3V, Optional = 3.0V)
[7:1]
RESERVED
0000000b
RW
RESERVED
16.6.8
EXTERNAL LDO FAULT INTERRUPT ENABLE REGISTER
The EXT_LDO_FAULT_INT_EN Register contains the fault interrupt enable bits for the 7 external LDOs.
LDO_FAULT: IC Address = Page-0: 115(0x73), C Address = 0xA073
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
0
LDO_050_0_FLT_INT_EN
0b
RW
0 = Disable
1 = Enable
Fault interrupt enable for LDO_050_0
1
LDO_050_1_FLT_INT_EN
0b
RW
Fault interrupt enable for LDO_050_1
2
LDO_050_2_FLT_INT_EN
0b
RW
Fault interrupt enable for LDO_050_2
3
LDO_050_3_FLT_INT_EN
0b
RW
Fault interrupt enable for LDO_050_3
4
LDO_150_0_FLT_INT_EN
0b
RW
Fault interrupt enable for LDO_150_0
5
LDO_150_1_FLT_INT_EN
0b
RW
Fault interrupt enable for LDO_150_1
6
LDO_150_2_FLT_INT_EN
0b
RW
Fault interrupt enable for LDO_150_2
7
RESERVED
0b
RW
RESERVED
16.6.9
LDO - INT_LDO_FAULT_INT Interrupt Register
The INT_LDO_FAULT_INT Register contains contains the Fault Status bits for the internal LDOs
IC Address = Page-0: 117(0x75), C Address = 0xA075
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
0
VDD_AUDIO33_FLT
0b
R
0 = No Fault
1 = Fault Exists
Fault in VDD_AUDIO33 regulator
1
VDD_CKGEN18_FLT
0b
R
Fault in VDD_CKGEN18 regulator
2
VDD_CKGEN33_FLT
0b
R
Fault in VDD_CKGEN33 regulator
3
LDO_LP_FAULT
0b
R
Fault in LDO_LP regulator
[7:4]
RESERVED
0000b
R
RESERVED
16.6.10
LDO SECURITY REGISTER
IC Address = Page-0: 119(0x77), C Address = 0xA077h
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
0
LDO_SEC_0
0b
RW
0 = Access allowed
1 = Access blocked
Allows or blocks the user from programming bit 4 in all of the external LDO
Output Voltage Registers.
1
LDO_SEC_1
0b
RW
0 = Access allowed
1 = Access blocked
Allows or blocks the user from programming bit 5 in all of the external LDO
Output Voltage Registers.
2
LDO_SEC_2
0b
RW
0 = Access allowed
1 = Access blocked
Allows or blocks the user from programming bit 6 in all of the external LDO
Output Voltage Registers.
[7:3]
RESERVED
00000b
RW
RESERVED
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