mm908e625 Freescale Semiconductor, Inc, mm908e625 Datasheet - Page 27

• Manufacturer Part Number: mm908e625
• Description: Integrated Quad Half H-bridge With Power Supply, Embedded Mcu, And Lin Serial Communication
• Manufacturer: Freescale Semiconductor, Inc

POWER OUTPUT REGISTER (POUT)
Current Source Select Bits (CSSEL0:CSSEL1)
Reset clears the CSSEL0:CSSEL1 bits.
Reset clears the CSEN bit
Table 9. PA1 Current Source Enable Bit
HVDDON bit.
Notes
Current Source Enable Bit (CSEN)
HVDD On Bit (HVDDON)
Analog Integrated Circuit Device Data
Freescale Semiconductor
Reset
Write
Read
Bits
15.
CSEN
These read/write bits select the current source values.
This read/write bit enables the current source for PA1.
This read/write bit enables HVDD output. Reset clears the
• 1 = HVDD enabled
• 0 = HVDD disabled
0
1
This bit must always be set to 0.
7
0
0
Register Name and Address: POUT - $0b
6
0
0
CSSEL1 CSSEL0 CSEN
5
0
Current Source Enable
4
0
Current Source Off
Current Source On
(Table
3
0
9).
0
(15)
2
0
HVDDON HS_ON
1
0
0
0
the HS_ON bit.
Hall-Effect Sensor Input Pins (H1:H3)
Function
two-pin Hall-effect sensors for detecting stall and position or
reading Hall-effect sensor contact switches. The Hall-effect
sensor input pins are not influenced by the PSON bit in the
System Control Register.
setting the HxEN bit in the Hall-Effect Sensor Input Pin
Control Register (HACTL). If the pins are enabled, the Hall-
effect sensors are supplied with V
circuitry is working. An internal clamp circuity limits the supply
voltage to the sensor to 15 V. This sense circuitry monitors
the current to VSS. The result of this sense operation is given
by the HxF flags in the Hall-Effect Sensor Input Pin Status
Register (HASTAT).
To prevent noise on this flag, a hysteresis is implemented on
these pins.
= 1), the Hall-effect sensors need some time to stabilize the
output. In RUN mode the software must wait at least 40 µs
between enabling the Hall-effect sensor and reading the hall
flag.
output voltage range from V
the hallflags are not functional anymore. If the output voltage
is below a certain threshold, the Hall-Effect Sensor Input Pin
Overcurrent Flag (HP_OCF) in the System Status Register is
set.
Hall-effect input sensors.
Lamp Driver On Bit (HS_ON)
This read/write bit enables the Lamp driver. Reset clears
• 1 = Lamp driver enabled
• 0 = Lamp driver disabled
The Hall-effect sensor input pins provide three inputs for
Each pin of the Hall-effect sensor can be enabled by
The flag is set if the sensed current is higher than I
After switching on the Hall-effect sensor input pins (HxEN
The Hall-effect sensor input pin works in an dynamic
Figures 13
through
15
LOGIC COMMANDS AND REGISTERS
illustrate the connections to the
FUNCTIONAL DEVICE OPERATION
SUP
down to 2.0 V. Below 2.0 V
SUP
voltage and the sense
908E625
HSCT
27
.