MC33910BAC Freescale, MC33910BAC Datasheet - Page 39

• Manufacturer Part Number: MC33910BAC
• Manufacturer: Freescale

Specifications of MC33910BAC

• Lead Free Status / RoHS Status: Compliant

REGISTER DEFINITIONS
System Status Register - SYSSR
transferred with every SPI transmission and gives a quick
system status overview. It summarizes the status of the
Voltage Monitor Status (VMS), LIN Status (LINS) and High
Side Status (HSS).
VMS - Voltage Monitor Status
VSR are set.
LINS - LIN Status
LINSR are set.
HSS - High Side Switch Status
HSSR are set.
Analog Integrated Circuit Device Data
Freescale Semiconductor
The System Status Register (SYSSR) is always
This read-only bit indicates that one or more bits in the
1 = Voltage Monitor bit set
0 = None
This read-only bit indicates that one or more bits in the
1 = LIN Status bit set
0 = None
This read-only bit indicates that one or more bits in the
1 = High Side Status bit set
0 = None
Table 10. System Status Register
Read
Figure 20. Voltage Monitor Status
BATFAIL
VDDOT
VSUV
VSOV
LINOT
TXDOM
RXSHORT
VMS
Figure 21. LIN Status
S7
LINS
S6
HSS
VMS
LINS
S5
S4
-
Mode Control Register - MCR
between the operation modes and to configure the 33910.
Writing the MCR will return the VSR.
HVSE - High-Voltage Shutdown Enable
the high side drivers during a high-voltage VSOV condition.
MOD2, MOD1 - Mode Control Bits
clearing the watchdog in accordance with
Control Bits.
Table 12.
Voltage Status Register - VSR
register is also returned when writing to the Mode Control
Register (MCR).
MOD2
The Mode Control Register (MCR) allows switching
This write-only bit enables/disables automatic shutdown of
1 = automatic shutdown enabled
0 = automatic shutdown disabled
These write-only bits select the operating mode and allow
Returns the status of the several voltage monitors. This
Table 13. Voltage Status Register - $0/$1
0
0
1
1
Table 11. Mode Control Register - $0
Condition
Read
Reset
Value
Reset
Write
Mode Control Bits
MOD1
0
1
0
1
Figure 22. High Side Status
VSOV
HVSE
POR
S3
C3
1
HS1CL
HS1OP
HS2CL
HS2OP
LOGIC COMMANDS AND REGISTERS
FUNCTIONAL DEVICE OPERATIONS
Normal Mode + Watchdog Clear
VSUV
POR
C2
S2
0
0
Normal Mode
Description
Sleep Mode
Stop Mode
MOD2
VDDOT
C1
-
-
S1
Table
HSS
MOD1
8, Mode
BATFAIL
C0
-
-
S0
33910
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