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參數(shù)資料
| 型號(hào)： | M68HC16Y1CFC |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, MROM, MICROCONTROLLER, PQFP16 |
| 封裝： | QFP-160 |
| 文件頁數(shù)： | 107/138頁 |
| 文件大?。?/td> | 784K |
| 代理商： | M68HC16Y1CFC |
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MOTOROLA
MC68HC16Y1
70
MC68HC16Y1TS/D
4.1 TPU ROM Functions
4.1.1 Discrete Input/Output (DIO)
When a pin is used as a discrete input, a parameter indicates the current input level and the previous
15 levels of a pin. Bit 15, the most significant bit of the parameter, indicates the most recent state. Bit
14 indicates the next most recent state, and so on.
4.1.2 Input Capture/Input Transition Counter (ITC)
Any channel of the TPU can capture the value of a specified TCR upon the occurrence of each transi-
tion, and then generate an interrupt request to notify the bus master.
4.1.3 Output Compare (OC)
Generates a rising edge, a falling edge, or a toggle of the previous edge in either of two ways:
1.
At a user-specified time. The CPU can also force an immediate output, thereby generating a
pulse with a length equal to the programmed delay.
2.
When linked to another channel. The OC references a linked parameter, without CPU interac-
tion, and adds an offset to it.
4.1.4 Pulse-Width Modulation (PWM)
Generates a pulse-width modulated waveform with any duty cycle from 0% to 100% (within the resolu-
tion and latency capability of the TPU). The CPU provides one parameter that specifies waveform pe-
riod and another parameter that specifies waveform high time. Updates to one or both of these
parameters can change the output to take effect either immediately, or coherently, at the next low-to-
high transition of the pin.
4.1.5 Synchronized Pulse-Width Modulation (SPWM)
Generates a pulse-width modulated waveform. The CPU can change period and/or high time at any
time. When synchronized to a time function on a second channel, the SPWM low-to-high transitions
have a time relationship to transitions on the second channel.
4.1.6 Period Measurement with Additional Transition Detect (PMA)
Allows special-purpose 16-bit period measurement. Detects the occurrence of an additional transition
indicated by the current measurement being less than a programmed ratio of a previous measurement.
When detected, this condition can be counted and compared to a programmed number of additional
transitions.
4.1.7 Period Measurement with Missing Transition Detect (PMM)
Allows special-purpose 16-bit period measurement. Detects the occurrence of a missing transition in-
dicated by the current measurement being more than a previous measurement multiplied by a pro-
grammed ratio. When detected, this condition can be counted and compared to a programmed number
of transitions.
4.1.8 Position-Synchronized Pulse Generator (PSP)
Any channel of the TPU can generate an output transition or pulse, which is a projection in time based
on a reference period previously calculated on another channel.
4.1.9 Stepper Motor (SM)
The stepper motor control algorithm uses a programmable number of step rates to control the linear
acceleration and deceleration of a stepper motor. Any group of up to eight channels can be pro-
grammed to generate the control logic necessary to drive a stepper motor. Nominally, only two or four
channels are used for a two-phase motor.
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