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MC68HC711E9FU
MC68HC711E9FU | |
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Manufacturer Part Number | MC68HC711E9FU |
Manufacturer | Freescale Semiconductor |
MC68HC711E9FU datasheet |
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Specifications of MC68HC711E9FU | |||
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Cpu Family | HC11 | Device Core Size | 8b |
Frequency (max) | 4MHz | Interface Type | SCI/SPI |
Program Memory Type | EPROM | Program Memory Size | 12KB |
Total Internal Ram Size | 512Byte | # I/os (max) | 38 |
Number Of Timers - General Purpose | 8 | Operating Supply Voltage (typ) | 3.3/5V |
Operating Supply Voltage (max) | 5.5V | Operating Supply Voltage (min) | 3V |
On-chip Adc | 8-chx8-bit | Instruction Set Architecture | CISC |
Operating Temp Range | 0C to 70C | Operating Temperature Classification | Commercial |
Mounting | Surface Mount | Pin Count | 64 |
Package Type | PQFP | Lead Free Status / Rohs Status | Not Compliant |
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9.4.9 Timer Interrupt Mask 2 Register
Use this 8-bit register to enable or inhibit timer overflow and real-time interrupts. The timer prescaler
control bits are included in this register.
Address:
$1024
Bit 7
Read:
TOI
Write:
Reset:
0
= Unimplemented
Figure 9-19. Timer Interrupt Mask 2 Register (TMSK2)
TOI — Timer Overflow Interrupt Enable Bit
0 = TOF interrupts disabled
1 = Interrupt requested when TOF is set to 1
RTII — Real-Time Interrupt Enable Bit
Refer to
9.5 Real-Time Interrupt
PAOVI — Pulse Accumulator Overflow Interrupt Enable Bit
Refer to
9.7.3 Pulse Accumulator Status and Interrupt
PAII — Pulse Accumulator Input Edge Interrupt Enable Bit
Refer to
9.7.3 Pulse Accumulator Status and Interrupt
Bits [3:2] — Unimplemented
Always read 0
PR[1:0] — Timer Prescaler Select Bits
These bits are used to select the prescaler divide-by ratio. In normal modes, PR[1:0] can be written
only once, and the write must be within 64 cycles after reset. Refer to
specific timing values.
Bits in TMSK2 correspond bit for bit with flag bits in TFLG2. Bits in TMSK2
enable the corresponding interrupt sources.
Freescale Semiconductor
6
5
4
3
RTII
PAOVI
PAII
0
0
0
0
(RTI).
Bits.
Bits.
Table 9-4. Timer Prescale
PR[1:0]
Prescaler
0 0
1
0 1
4
1 0
8
1 1
16
NOTE
M68HC11E Family Data Sheet, Rev. 5.1
Output Compare
2
1
Bit 0
PR1
PR0
0
0
0
Table 9-1
and
Table 9-4
for
139
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APPENDIX A ELECTRICAL CHARACTERISTICS | FREESCALE [Freescale Semiconductor, Inc] |
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Freescale Semiconductor, Inc |
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Freescale Semiconductor, Inc |
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Freescale Semiconductor, Inc |
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Freescale Semiconductor, Inc |
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Freescale Semiconductor, Inc |
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Freescale Semiconductor, Inc |
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Freescale Semiconductor, Inc |
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