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参数资料
| 型号： | MC68HC11C0MFN2 |
| 厂商： | MOTOROLA INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 2 MHz, MICROCONTROLLER, PQCC68 |
| 封装： | PLASTIC, LCC-68 |
| 文件页数： | 52/76页 |
| 文件大小： | 394K |
| 代理商： | MC68HC11C0MFN2 |
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MOTOROLA
MC68HC11C0
56
MC68HC11C0TS/D
PWDTY1–PWDTY2
Determines duty cycle of associated PWM channel
Duty cycle registers can be written any time. A new value written to a duty register does not take effect
until the counter resets and the new value is latched. Users may begin the new duty cycle immediately
by writing the new value to the duty register, then writing any value to the counter. The counter will reset
and the new duty cycle value will be latched. If the value in the duty register is equal to or greater than
the value in the period register, there will be no change in state. Refer to 9.1 PWM Boundary Cases.
9.1 PWM Boundary Cases
Certain values written to PWM control registers, counters, etc. can cause outputs that are not what the
user might expect. These are referred to as boundary cases. Boundary cases occur when the user
specifies a value that is either a maximum or a minimum. This value combined with other conditions
causes unexpected behavior of the PWM system.
The following conditions always cause the corresponding output to be high:
PWDTYx = $00, PWPERx > $00, and PPOLx = 0
PWDTYx
≥PWPERx, and PPOLx = 1
PWPERx = $00 and PPOLx = 1
The following conditions always cause the corresponding output to be low:
PWDTYx = $00, PWPERx > $00, and PPOLx = 1
PWDTYx
≥PWPERx, and PPOLx = 0
PWPERx = $00 and PPOLx = 0
PWDTY1–PWDTY2 — Pulse-Width Modulation Timer Duty Cycle 1 to 2 $006E–$006F
$006E
Bit 7
654321
Bit 0
PWDTY1
$006F
Bit 7
654321
Bit 0
PWDTY2
RESET:
11111111
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相关代理商/技术参数 |
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|---|---|
| MC68HC11C0MFU2 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:8-Bit Microcontroller |
| MC68HC11C0VFN2 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:8-Bit Microcontroller |
| MC68HC11C0VFU2 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:8-Bit Microcontroller |
| MC68HC11D0 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC68HC11D0CFB2 | 制造商:Rochester Electronics LLC 功能描述:8BIT MCU,192 BYTES RAM - Bulk 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
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