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参数资料
| 型号： | KIT908EINTFC |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 30/49页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL 908E625 QUAD W/MCU/LIN |
| 标准包装： | 1 |
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Analog Integrated Circuit Device Data
36
Freescale Semiconductor
908E625
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
Go to STOP Mode Bit (GS)
This write-only bit instructs the 908E625 to power down
and go into Stop mode. Reset or CPU interrupt requests clear
the GS bit.
1 = Power down and go into Stop mode
0 = Not in STOP mode
SYSTEM STATUS REGISTER (SYSSTAT)
Hall-Effect Sensor Input Pin Over-current Flag Bit
(HP_OCF)
This read/write flag is set on an over-current condition at
one of the Hall-effect sensor input pins. Clear HP_OCF and
enable the output by writing a Logic [1] to the HP_OCF flag.
Reset clears the HP_OCF bit. Writing a Logic [0] to HP_OCF
has no effect.
1 = Over-current condition on Hall-effect sensor input
pin has occurred
0 = No over-current condition on Hall-effect sensor input
pin has occurred
LIN Current Limitation Bit (LINCL)
This read-only bit is set if the LIN transmitter operates in
current limitation region. Due to excessive power dissipation
in the transmitter, software is advised to turn the transmitter
off immediately.
1 = Transmitter operating in current limitation region
0 = Transmitter not operating in current limitation region
HVDD Output Over-current Flag Bit (HVDD_OCF)
This read/write flag is set on an over-current condition at
the HVDD pin. Clear HVDD_OCF and enable the output by
writing a Logic [1] to the HVDD_OCF Flag. Reset clears the
HVDD_OCF bit. Writing a Logic [0] to HVDD_OCF has no
effect.
1 = Over-current condition on HVDD has occurred
0 = No over-current condition on HVDD has occurred
High Side Over-current Flag Bit (HS_OCF)
This read/write flag is set on an over-current condition at
the high side driver. Clear HS_OCF and enable the high side
driver by writing a Logic [1] to HS_OCF. Reset clears the
HS_OCF bit. Writing a Logic [0] to HS_OCF has no effect.
1 = Over-current condition on high side drivers has
occurred
0 = No over-current condition on high side drivers has
occurred
Low Voltage Bit (LVF)
This read only bit is a copy of the LVF bit in the Interrupt
Flag Register.
1 = Low voltage condition has occurred
0 = No low voltage condition has occurred
High Voltage Sensor Bit (HVF)
This read-only bit is a copy of the HVF bit in the Interrupt
Flag Register.
1 = High voltage condition has occurred
0 = No high voltage condition has occurred
H-Bridge Over-current Flag Bit (HB_OCF)
This read / write flag is set on an over-current condition at
the H-Bridges. Clear HB_OCF and enable the H-Bridge
driver by writing a Logic [1] to HB_OCF. Reset clears the
HB_OCF bit. Writing a Logic [0] to HB_OCF has no effect.
1 = Over-current condition on H-Bridges has occurred
0 = No over-current condition on H-Bridges has
occurred
Over-temperature Status Bit (HTF)
This read-only bit is a copy of the HTF bit in the Interrupt
Flag Register.
1 = Over-temperature condition has occurred
0 = No over-temperature condition has occurred
AUTONOMOUS WATCHDOG (AWD)
The Autonomous Watchdog module consists of three
functions:
Watchdog function for the CPU in RUN mode
Periodic interrupt function in STOP mode
Cyclic wake-up function in STOP mode
The AWD is enabled if AWDIE, AWDRE, or AWDCC in the
AWDCTL Register is set. If these bits are cleared, the AWD
oscillator is disabled and the watchdog switched off.
WATCHDOG
The watchdog function is only available in RUN mode. On
setting the AWDRE bit, watchdog functionality in RUN mode
Table 11. LIN Slew Rate Selection Bits
SRS1
SRS0
LIN Slew Rate
0
Initial Slew Rate (20 kBaud)
0
1
Slow Slew Rate (10 kBaud)
1
0
High Speed II (8x)
1
High Speed I (4x)
Register Name and Address: SYSSTAT - $0c
Bits
7
6
5
4
3
2
1
0
Read
HP_
OCF
LINCL HVDD
_OCF
HS_
OCF
LVF
HVF
HB_
OCF
HTF
Write
Reset
0000
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