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参数资料
型号： MC68HC11F1CFN4
厂商： Freescale Semiconductor
文件页数： 21/158页
文件大小： 0K
描述： IC MCU 512 EEPROM 4MHZ 68-PLCC
标准包装： 18
系列： HC11
核心处理器： HC11
芯体尺寸： 8-位
速度： 4MHz
连通性： SCI，SPI
外围设备： POR，WDT
输入/输出数： 30
程序存储器类型： ROMless
EEPROM 大小： 512 x 8
RAM 容量： 1K x 8
电压 - 电源 (Vcc/Vdd)： 4.75 V ~ 5.25 V
数据转换器： A/D 8x8b
振荡器型： 内部
工作温度： -40°C ~ 85°C
封装/外壳： 68-LCC（J 形引线）
包装： 管件
TIMING SYSTEM
TECHNICAL DATA
9-11
9.3.8 Timer Interrupt Flag Register 1
Bits in this register indicate when timer system events have occurred. Coupled with
the bits of TMSK1, the bits of TFLG1 allow the timer subsystem to operate in either a
polled or interrupt driven system. Each bit of TFLG1 corresponds to a bit in TMSK1 in
the same position.
Clear flags by writing a one to the corresponding bit position(s).
OC1F–OC4F — Output Compare x Flag
Set each time the counter matches output compare x value
I4/O5F — Input Capture 4/Output Compare 5 Flag
Set by IC4 or OC5, depending on the function enabled by I4/O5 bit in PACTL
IC1F–IC3F — Input Capture x Flag
Set each time a selected active edge is detected on the ICx input line
9.3.9 Timer Interrupt Mask Register 2
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.
TOI — Timer Overflow Interrupt Enable
0 = TOF interrupts disabled
1 = Interrupt requested when TOF is set to one
RTII — Real-Time Interrupt Enable
Refer to 9.4 Real-Time Interrupt.
PAOVI — Pulse Accumulator Overflow Interrupt Enable
Refer to 9.6.3 Pulse Accumulator Status and Interrupt Bits.
PAII — Pulse Accumulator Input Edge Interrupt Enable
Refer to 9.6.3 Pulse Accumulator Status and Interrupt Bits.
PR[1:0] — Timer Prescaler Select
These bits are used to select the prescaler divide-by ratio. In normal modes, PR[1:0]
can only be written once, and the write must be within 64 cycles after reset. Refer to
Table 9-1 and Table 9-4 for specific timing values.
TFLG1 — Timer Interrupt Flag 1
$1023
Bit 7
654321
Bit 0
OC1F
OC2F
OC3F
OC4F
I4/O5F
IC1F
IC2F
IC3F
RESET:
0000000
0
TMSK2 — Timer Interrupt Mask 2
$1024
Bit 7
654321
Bit 0
TOI
RTII
PAOVI
PAII
—
PR1
PR0
RESET:
0000000
0
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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