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| 型号： | MC33912BAC |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 88/95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 |
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MC33912BAC / MC34912BAC
FUNCTIONAL DEVICE OPERATIONS
LOGIC COMMANDS AND REGISTERS
WDERR - Watchdog Error
Table 58. Analog Multiplexer Channel Select
This read-only bit signals the detection of a missing watchdog
resistor. In this condition the watchdog is using the internal,
lower precision timebase. The Windowing function is
disabled.
1 = WDCONF pin resistor missing
0 = WDCONF pin resistor not floating
WDOFF - Watchdog Off
This read-only bit signals that the watchdog pin connected to
Ground and therefore disabled. In this case watchdog
timeouts are disabled and the device automatically enters
MX2
0
0
0
0
1
1
1
1
MX1
0
0
1
1
0
0
1
1
MX0
0
1
0
1
0
1
0
1
Meaning
Disabled
Reserved
Die Temperature Sensor
VSENSE input
L1 input
L2 input
L3 input
L4 input
Normal mode out of Reset. This might be necessary for
software debugging and for programming the Flash memory.
1 = Watchdog is disabled
0 = Watchdog is enabled
WDWO - Watchdog Window Open
This read-only bit signals when the watchdog window is open
Configuration Register - CFR
This register controls the Hall Sensor Supply enable/disable,
the cyclic sense timing multiplier, enables/disables the
Current Sense Auto-zero function and selects the gain for the
current sense amplifier.
Table 59. Configuration Register - $D
for clears. The purpose of this bit is for testing. Should be
ignored in case WDERR is High.
C3
C2
C1
C0
1 = Watchdog window open
0 = Watchdog window closed
Analog Multiplexer Control Register - MUXCR
This register controls the analog multiplexer and selects the
divider ration for the Lx input divider.
Write
Reset
Value
Reset
Condition
HVDD
0
POR, Reset
mode or
ext_reset
CYSX8
0
POR
CSAZ
0
POR
CSGS
0
POR
Table 57. Analog Multiplexer Control Register -$C
HVDD - Hall Sensor Supply Enable
C3
C2
C1
C0
This write-only bit enables/disables the state of the hall
Write
Reset
Value
LXDS
1
MX2
0
MX1
0
MX0
0
sensor supply.
1 = HVDD on
0 = HVDD off
Reset
Condition
POR
POR, Reset mode or ext_reset
CYSX8 - Cyclic Sense Timing x 8.
This write-only bit influences the cyclic sense period as
LXDS - Lx Analog Input Divider Select
This write-only bit selects the resistor divider for the Lx analog
inputs. Voltage is internally clamped to VDD.
0 = Lx Analog divider: 1
1 = Lx Analog divider: 3.6 (typ.)
MXx - Analog Multiplexer Input Select
These write-only bits selects which analog input is
When disabled or when in Stop or Sleep mode, the output
buffer is not powered and the ADOUT0 output is left floating
to achieve lower current consumption.
1 = Multiplier enabled
0 = None
CSAZ - Current Sense Auto-Zero Function Enable
This write-only bit enables/disables the circuitry to lower the
offset voltage of the current sense amplifier.
1 = Auto-zero function enabled
0 = Auto-zero function disabled
CSGS - Current Sense Amplifier Gain Select
This write-only bit selects the gain of the current sense
amplifier.
1 = 14.5 (typ.)
0 = 30 (typ.)
33912
Analog Integrated Circuit Device Data ?
88
Freescale Semiconductor
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| MC33912BACR2 | 功能描述:LIN 收发器 SBC LIN2G - HI END RoHS:否 制造商:NXP Semiconductors 工作电源电压: 电源电流: 最大工作温度: 封装 / 箱体:SO-8 |
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| MC33912G5ACR2 | 功能描述:LIN 收发器 SBC LIN 2.5G RoHS:否 制造商:NXP Semiconductors 工作电源电压: 电源电流: 最大工作温度: 封装 / 箱体:SO-8 |
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