mc68hc708mp16 Freescale Semiconductor, Inc, mc68hc708mp16 Datasheet - Page 183

• Manufacturer Part Number: mc68hc708mp16
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

9.11.9 Fault Status Register
MC68HC708MP16
Freescale Semiconductor
—
Rev. 3.1
Address:
This read-only register indicates the current fault status.
FFLAG1 — Fault Event Flag 1
FPIN1 — State of Fault Pin 1
FFLAG2 — Fault Event Flag 2
FPIN2 — State of Fault Pin 2
Reset:
Read:
Write:
Pulse Width Modulator for Motor Control (PWMMC)
The FFLAG1 event bit is set within two CPU cycles after a rising edge
on fault pin 1. To clear the FFLAG1 bit, the user must write a 1 to the
FTACK1 bit in the fault acknowledge register.
This read-only bit allows the user to read the current state of fault
pin 1.
The FFLAG2 event bit is set within two CPU cycles after a rising edge
on fault pin 2. To clear the FFLAG2 bit, the user must write a 1 to the
FTACK2 bit in the fault acknowledge register.
This read-only bit allows the user to read the current state of fault
pin 2.
1 = A fault has occurred on fault pin 1
0 = No new fault on fault pin 1
1 = Fault pin 1 is at logic 1
0 = Fault pin 1 is at logic 0
1 = A fault has occurred on fault pin 2
0 = No new fault on fault pin 2
1 = Fault pin 2 is at logic 1
0 = Fault pin 2 is at logic 0
$0023
FPIN4
Bit 7
U
Figure 9-48. Fault Status Register (FSR)
= Unimplemented
FFLAG4
6
0
FPIN3
U
5
Pulse Width Modulator for Motor Control (PWMMC)
FFLAG3
4
0
U = Unaffected
FPIN2
U
3
FFLAG2
2
0
FPIN1
U
1
Technical Data
FFLAG1
Bit 0
0
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