X80000 Datasheet, PDF (29/37 Pages) Intersil Corporation – Smart Power Plug Penta-Power Sequence Controller with Hot Swap

X80000, X80001
All of the Control Register bits are nonvolatile (except for the
WEL bit), so they do not change when power is removed.
The values of the Register Block can be read at any time by
performing a random read (see Serial Interface) at the
specific byte address location. Only one byte is read by each
register read operation.
Bits in the registers can be modified by performing a single
byte write operation directly to the address of the register
and only one data byte can change for each register write
operation.
TABLE 15. REGISTER ADDRESS MAP
BYTE REGISTER
BIT
MEMORY
ADDR. NAME
DESCRIPTION
7
6
5
4
3
2
1
0
TYPE
00H
CR0
Control
WEL
0
0
0
0
0
0
0
Volatile
Register 0
01H
CR1
Control
Register 1
WPEN
0
0
BP1
BP0
NR2
NR1
NR0 EEPROM
02H
CR2
Control
Register 2
IG3
IG2
IG1
IG0 TPOR1 TPOR0 TSC1 TSC0 EEPROM
03H
CR3
Control
Register 3
T4D1 T4D0 T3D1 T3D0 T2D1 T2D0 T1D1 T1D0 EEPROM
04H
CR4
Control
VS1
VS0
F1
F0
0
0
0
0
EEPROM
Register 4
05H
RSR
Remote Shutdown AAh: Override FET control and shutdown the FET
(Note 1)
Register
00h: Turn off override
(All other data combinations to RSR are reserved.)
Volatile
FF
FDR
Fault Detection
Register
FOV FUV1/2 FOC
FAR_
STAT
V40S
V30S
V20S
V10S
Volatile
(1) This register is write only
SYMBOL
FAR_STAT
FOC
FOV
FUV1/2
V1OS
V2OS
V3OS
V4OS
LOCATION(S)
REGISTER BITS
FDR
4
FDR
5
FDR
7
FDR
6
FDR
0
FDR
1
FDR
2
FDR
3
TABLE 16. FAULT DETECTION BITS SUMMARY
CONTROL FUNCTION/
STATUS INDICATION
Retry Violation
Overcurrent Violation
Overvoltage Violation
Undervoltage Violation
1st Voltage Good
2nd Voltage Good
3rd Voltage Good
4th Voltage Good
DESCRIPTION
FAR_STAT = 0 : Failure After retry detected (must be preset to 1).
FOC = 0 : Over current detected (must be preset to 1).
FOV = 0 : Over voltage detected (must be preset to 1).
FUV1/2 = 0 : Under voltage detected (must be preset to 1).
V1OS = 0 : V1GOOD pin has been asserted (must be preset to 1).
V2OS = 0 : V2GOOD pin has been asserted (must be preset to 1).
V3OS = 0 : V3GOOD pin has been asserted (must be preset to 1).
V4OS = 0 : V4GOOD pin has been asserted (must be preset to 1).
29
FN8148.0
March 18, 2005