mc68hc908mr24 Freescale Semiconductor, Inc, mc68hc908mr24 Datasheet - Page 184

• Manufacturer Part Number: mc68hc908mr24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Pulse-Width Modulator for Motor Control
9.10.9 Fault Status Register
Advance Information
184
Address:
FMODE1 — Fault Mode Selection for Fault Pin 1 Bit
The fault status register (FSR) is a read-only register that indicates the
current fault status.
FPIN4 — State of Fault Pin 4 Bit
FFLAG4 — Fault Event Flag 4
Reset:
Read:
Write:
Pulse-Width Modulator for Motor Control (PWMMC)
This read/write bit allows the user to select between automatic and
manual mode faults. For further descriptions of each mode, see
Fault
This read-only bit allows the user to read the current state of fault
pin 4.
The FFLAG4 event bit is set within two CPU cycles after a rising edge
on fault pin 4. To clear the FFLAG4 bit, the user must write a 1 to the
FTACK4 bit in the fault acknowledge register.
1 = Automatic mode
0 = Manual mode
1 = Fault pin 4 is at logic 1.
0 = Fault pin 4 is at logic 0.
1 = A fault has occurred on fault pin 4.
0 = No new fault on fault pin 4
$0023
FPIN4
Bit 7
Protection.
U
(automatic versus manual mode)
Figure 9-43. Fault Status Register (FSR)
= Unimplemented
FFLAG4
6
0
FPIN3
U
5
U = Unaffected
FFLAG3
4
0
FPIN2
U
3
MC68HC908MR24
FFLAG2
Freescale Semiconductor
2
0
FPIN1
U
1
—
FFLAG1
Rev. 4.1
Bit 0
9.7
0