参数资料
| 型号： | MC33970DWR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 19/36页 |
| 文件大小： | 0K |
| 描述： | IC GAUGE DRIVER SPI 24-SOIC |
| 标准包装： | 1 |
| 应用： | 步进电机驱动器，2 相 |
| 输出数： | 2 |
| 电流 - 输出： | 100mA |
| 电压 - 负载： | 6.5 V ~ 26 V |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 带卷 (TR) |
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FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
Any bits clocked out of the SO pin after the first 16 are
representative of the initial message bits clocked into the SI
pin since the CS pin first transitioned to a logic [0]. This
feature is useful for daisy-chaining devices as well as
message verification.
As described above, the last valid write to bits PE11:PE8
of the PECCR command determines the nature of the status
data that is clocked out of the SO pin.
There are five different types of status information
available:
1. Device Status (refer to Table 15 below)
5. Gauge 1 and 2 Pointer Velocity Status (refer to
Once a specific status type is selected, it will not change
until either the PECCR command bits PE11:PE8 (D11:D8)
are written to select another or the device is reset. Each of the
Status types and the PECCR bit necessary to select them are
described below.
Device Status Information
Most recent valid PECCR command resulting in the
Device Status output:
D11
0
D10
x
D9
x
D8
x
Table 15. Device Status Output Register
x = Don’t care.
Bits
OD15
OD14
OD13
OD12
OD11
OD10
OD9
OD8
OD7
OD6
OD5
OD4
OD3
OD2
OD1
OD0
Read
DIR1
DIR0
0POS1 0POS0 CMD1 CMD0
OV
UV
CAL
OVUV MOV1 MOV0
RTZ1
RTZ0
OT1
OT0
Write
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
The bits in Table 15 are read-only bits.
DIR1 (OD15) — This bit indicates the direction Gauge 1
pointer is moving.
? 0 = Toward position 0
? 1 = Away from position 0
DIR0 (OD14) — This bit indicates the direction Gauge 0
pointer is moving.
? 0 = Toward position 0
? 1 = Away from position 0
0POS1 (OD13) — This bit indicates the configured Position
0 for Gauge 1.
? 0 = Farthest CCW
? 1 = Farthest CW
0POS0 (OD12) — This bit indicates the configured Position
0 for Gauge 0.
? 0 = Farthest CCW
? 1 = Farthest CW
CMD1 (OD11) — This bit indicates whether Gauge 1 is at
the most recently commanded position.
? 0 = At commanded position
? 1 = Not at commanded position
CMD0 (OD10) — This bit indicates whether Gauge 0 is at
the most recently commanded position.
? 0 = At commanded position
? 1 = Not at commanded position
OV (OD9) — Overvoltage Indication. A logic [1] on this bit
indicates V PWR voltage exceeded the upper limit of V PWROV
since the last SPI communication (refer to the Static Electrical
Characteristics table under POWER INPUT , page 5 ). An
overvoltage event will automatically disable the driver
outputs. Because the pointer may not be in the expected
position, the master may want to re-calibrate the pointer
position with an RTZ command after the voltage returns to a
normal level. For an overvoltage event, both gauges must be
re-enabled as quickly as this flag returns to logic [0]. The
state machine will continue to operate properly as long as
V DD is within the normal range.
? 0 = Normal range
? 1 = Battery voltage exceeded V PWROV
UV (OD8) — Undervoltage Indication. A logic 1] on this bit
indicates the V PWR voltage fell below V PWRUV since the last
SPI communication (refer to the Static Electrical
Characteristics table under POWER INPUT , page 5 ). An
undervoltage event is just flagged; however, at some voltage
level below 4.0 V, the outputs turn OFF and the state
machine resets. Because the pointer may not be in the
expected position, the master may want to re-calibrate the
pointer position with an RTZ command after the voltage
returns to a normal level. For an undervoltage event, both
gauges may need to be re-enabled as quickly as this flag
returns to logic [0]. The state machine will continue to operate
properly as long as V DD is within the normal range.
? 0 = Normal range
? 1 = Battery voltage fell below V PWRUV
CAL (OD7) — Calibrated Clock out of Specification. A
logic [1] on this bit indicates the clock count calibrated to a
value outside the expected range given the tolerance
specified by t CLC in the Dynamic Electrical Characteristics
33970
Analog Integrated Circuit Device Data
Freescale Semiconductor
19
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| MC33972ATEK | 功能描述:接口 - 专用 MULT SW DET SUP-WKUP RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
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