参数资料
型号: MC34912BAC
厂商: Freescale Semiconductor
文件页数: 40/95页
文件大小: 0K
描述: IC SYSTEM BASIS CHIP LIN 32-LQFP
标准包装: 250
应用: 系统基础芯片
电流 - 电源: 4.5mA
电源电压: 5.5 V ~ 18 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-LQFP
供应商设备封装: 32-LQFP(7x7)
包装: 托盘
MC33912G5AC / MC34912G5AC
FUNCTIONAL DEVICE OPERATIONS
LOGIC COMMANDS AND REGISTERS
REGISTER DEFINITIONS
System Status Register - SYSSR
1 = High Side Status bit set
0 = None
The System Status Register (SYSSR) is always 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), High Side Status (HSS),
HS1CL
HS1OP
HS2CL
HSS
and the Low Side Status (LSS).
Table 10. System Status Register
HS2OP
Figure 23. High Side Status
S7
S6
S5
S4
LSS - Low Side Switch Status
Read
VMS
LINS
HSS
LSS
This read-only bit indicates that one or more bits in the LSSR
VMS - Voltage Monitor Status
This read-only bit indicates that one or more bits in the VSR
are set.
1 = Voltage Monitor bit set
0 = None
are set.
1 = Low Side Status bit set
0 = None
LS1CL
BATFAIL
VDDOT
VSUV
VSOV
VMS
LS1OP
LSS
LS2CL
LS2OP
Figure 24. Low Side Status
Mode Control Register - MCR
Figure 21. Voltage Monitor Status
LINS - LIN Status
This read-only bit indicates that one or more bits in the LINSR
are set.
The Mode Control Register (MCR) allows switching between
the operation modes and to configure the 33912. Writing the
MCR will return the VSR.
Table 11. Mode Control Register - $0
1 = LIN Status bit set
C3
C2
C1
C0
0 = None
LINOT
Write
Reset
Value
HVSE
1
0
0
MOD2
-
MOD1
-
TXDOM
LINS
Reset
Condition
POR
POR
-
-
RXSHORT
Figure 22. LIN Status
HSS - High Side Switch Status
This read-only bit indicates that one or more bits in the HSSR
are set.
HVSE - High-voltage Shutdown Enable
This write-only bit enables/disables automatic shutdown of
the high side and the low side drivers during a high-voltage
VSOV condition.
1 = automatic shutdown enabled
0 = automatic shutdown disabled
33912
Analog Integrated Circuit Device Data ?
40
Freescale Semiconductor
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