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CY7C67300
PWM Registers
There are eleven registers dedicated to PWM operation. Each of these registers are covered in this section and summarized in Table 124.
Table 124. PWM Registers
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| Register Name |
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| Address |
| R/W | ||||
PWM Control Register |
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| 0xC0E6 |
| R/W | ||||
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PWM Maximum Count Register |
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| 0xC0E8 |
| R/W | ||||||
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PWM0 Start Register |
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| 0xC0EA |
| R/W | ||||
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PWM0 Stop Register |
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| 0xC0EC |
| R/W | ||||
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PWM1 Start Register |
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| 0xC0EE |
| R/W | ||||
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PWM1 Stop Register |
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| 0xC0F0 |
| R/W | ||||
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PWM2 Start Register |
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| 0xC0F2 |
| R/W | ||||
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PWM2 Stop Register |
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| 0xC0F4 |
| R/W | ||||
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PWM3 Start Register |
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| 0xC0F6 |
| R/W | ||||
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PWM3 Stop Register |
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| 0xC0F8 |
| R/W | ||||
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PWM Cycle Count Register |
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| 0xC0FA |
| R/W | ||||
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PWM Control Register [0xC0E6] [R/W] |
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Table 125. PWM Control Register |
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Bit # | 15 | 14 |
| 13 | 12 |
| 11 |
| 10 |
| 9 | 8 |
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Field | PWM |
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| Reserved |
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| Prescale |
| Mode |
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Enable |
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| Select |
| Select |
| ||
Read/Write | R/W | - |
| - | - |
| R/W |
| R/W |
| R/W | R/W |
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Default | 0 | 0 |
| 0 | 0 |
| 0 |
| 0 |
| 0 | 0 |
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Bit # | 7 | 6 |
| 5 | 4 |
| 3 |
| 2 |
| 1 | 0 |
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| PWM 3 | PWM 2 |
| PWM 1 | PWM 0 |
| PWM 3 |
| PWM 2 |
| PWM 1 | PWM 0 |
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Field | Polarity | Polarity |
| Polarity | Polarity |
| Enable |
| Enable |
| Enable | Enable |
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Select | Select |
| Select | Select |
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Read/Write | R/W | R/W |
| R/W | R/W |
| R/W |
| R/W |
| R/W | R/W |
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Default | 0 | 0 |
| 0 | 0 |
| 0 |
| 0 |
| 0 | 0 |
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Register Description
The PWM Control register provides high level control over all four of the PWM channels.
PWM Enable (Bit 15)
The PWM Enable bit starts and stops PWM operation.
1:Start operation
0:Stop operation Prescale Select (Bits [11:9])
The Prescale Select field sets the frequency of all the PWM channels as defined in Table 126.
Table 126. Prescaler Select Definition
Prescale Select [11:9] | Frequency |
000 | 48.00 MHz |
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001 | 24.00 MHz |
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010 | 06.00 MHz |
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011 | 01.50 MHz |
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100 | 375 kHz |
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101 | 93.80 kHz |
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110 | 23.40 kHz |
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111 | 05.90 kHz |
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Document #: | Page 75 of 99 |
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