MC68HC912B32MFU8 MOTOROLA [Motorola, Inc], MC68HC912B32MFU8 Datasheet - Page 78

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MC68HC912B32MFU8

Manufacturer Part Number
MC68HC912B32MFU8
Description
16-Bit Microcontroller
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
TFLG1 — Timer Interrupt Flag 1
C7F–C0F — Input Capture/Output Compare Channel “n” Flag.
TFLG2 — Timer Interrupt Flag 2
TOF — Timer Overflow Flag
TC0 — Timer Input Capture/Output Compare Register 0
TC1 — Timer Input Capture/Output Compare Register 1
TC2 — Timer Input Capture/Output Compare Register 2
78
MOTOROLA
RESET:
RESET:
The newly selected prescale factor will not take effect until the next synchronized edge where all pres-
cale counter stages equal zero.
TFLG1 indicates when interrupt conditions have occurred. To clear a bit in the flag register, write a one
to the bit.
Read anytime. Write used in the clearing mechanism (set bits cause corresponding bits to be cleared).
Writing a zero will not affect current status of the bit.
When TFFCA bit in TSCR register is set, a read from an input capture or a write into an output compare
channel ($90–$9F) will cause the corresponding channel flag CnF to be cleared.
TFLG2 indicates when interrupt conditions have occurred. To clear a bit in the flag register, set the bit
to one.
Read anytime. Write used in clearing mechanism (set bits cause corresponding bits to be cleared).
Any access to TCNT will clear TFLG2 register if the TFFCA bit in TSCR register is set.
Set when 16-bit free-running timer overflows from $FFFF to $0000. This bit is cleared automatically by
a write to the TFLG2 register with bit 7 set. (See also TCRE control bit explanation.)
Bit 15
Bit 15
Bit 15
Bit 7
Bit 7
TOF
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
C7F
0
0
C6F
14
14
14
6
0
6
0
0
6
6
6
6
6
6
C5F
13
13
13
5
0
5
0
0
5
5
5
5
5
5
C4F
12
12
12
4
0
4
0
0
4
4
4
4
4
4
C3F
11
11
11
3
0
3
0
0
3
3
3
3
3
3
C2F
10
10
10
2
0
2
0
0
2
2
2
2
2
2
C1F
1
0
1
0
0
1
9
1
1
9
1
1
9
1
MC68HC912B32TS/D
Bit 0
Bit 0
Bit 0
Bit 8
Bit 0
Bit 0
Bit 8
Bit 0
Bit 0
Bit 8
Bit 0
C0F
MC68HC912B32
0
0
0
$0090–$0091
$0092–$0093
$0094–$0095
$008E
$008F

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