参数资料
型号: MC33910G5AC
厂商: Freescale Semiconductor
文件页数: 80/90页
文件大小: 0K
描述: IC SYSTEM BASIS CHIP 32LQFP
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 ~ 27 V
工作温度: -40°C ~ 125°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
MC33910BAC / MC34910BAC
FUNCTIONAL DEVICE OPERATIONS
LOGIC COMMANDS AND REGISTERS
MOD2, MOD1 - Mode Control Bits
These write-only bits select the Operating mode and allow
to clear the watchdog in accordance with Table 38 Mode
Control Bits.
Table 40. Mode Control Bits
Any access to the MCR or voltage status register (VSR)
will clear the BATFAIL flag.
1 = POR Reset has occurred
0 = POR Reset has not occurred
Wake-up Control Register - WUCR
MOD2
0
0
1
MOD1
0
1
0
Description
Normal Mode
Stop Mode
Sleep Mode
This register is used to control the digital wake-up input.
Writing the wake-up control register (WUCR) will return the
wake-up status register (WUSR).
Table 42. Wake-up Control Register - $2
1
1
Normal Mode + watchdog Clear
C3
C2
C1
C0
Voltage Status Register - VSR
Returns the status of the several voltage monitors. This
register is also returned when writing to the MCR.
Write
Reset
Value
0
1
0
1
0
1
L1WE
1
Table 41. Voltage Status Register - $0/$1
Reset
Condition
POR, Reset mode or ext_reset
S3
S2
S1
S0
Read
VSOV
VSUV
VDDOT
BATFAIL
L1WE - Wake-up Input Enable
This write-only bit enables/disables the L1 input. In Stop
VSOV - V SUP Over-voltage
This read-only bit indicates an over-voltage condition on
the VS1 pin.
1 = Over-voltage condition.
0 = Normal condition.
VSUV - V SUP Under-voltage
This read-only bit indicates an under-voltage condition on
the VS1 pin.
1 = Under-voltage condition.
0 = Normal condition.
and Sleep mode the L1WE bit activates the L1 input for wake-
up. If the L1 input is selected on the analog multiplexer, the
L1WE is masked to 0.
1 = Wake-up Input enabled.
0 = Wake-up Input disabled.
Wake-up Status Register - WUSR
This register is used to monitor the digital wake-up inputs
and is also returned when writing to the wake-up control
register (WUCR).
Table 43. Wake-up Status Register - $2/$3
VDDOT - Main Voltage Regulator Over-temperature
S3
S2
S1
S0
Warning
Read
-
-
-
L1
This read-only bit indicates that the main voltage regulator
temperature reached the Over-Temperature Prewarning
Threshold.
1 = Over-temperature prewarning
0 = Normal
BATFAIL - Battery Fail Flag.
This read-only bit is set during power-up and indicates that
the 33910 had a power on reset (POR).
L1 - Wake-up input
This read-only bit indicates the status of the L1 input. If the
L1 input is not enabled then the wake-up status will return 0.
After a wake-up form Stop or Sleep mode this bit also
allows to verify the L1 input has caused the wake-up, by first
reading the interrupt status register (ISR) and then reading
the wake-up status register (WUSR).
1 = L1 Wake-up.
0 = L1 Wake-up disabled or selected as analog input.
33910
Analog Integrated Circuit Device Data
Freescale Semiconductor
80
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