Cypress CY7C67300 PWM Registers Register Name Address, PWM Control Register, PWM Enable Bit

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

		Register Name				Address			R/W
PWM Control Register						0xC0E6			R/W
PWM Maximum Count Register						0xC0E8			R/W
PWM0 Start Register						0xC0EA			R/W
PWM0 Stop Register						0xC0EC			R/W
PWM1 Start Register						0xC0EE			R/W
PWM1 Stop Register						0xC0F0			R/W
PWM2 Start Register						0xC0F2			R/W
PWM2 Stop Register						0xC0F4			R/W
PWM3 Start Register						0xC0F6			R/W
PWM3 Stop Register						0xC0F8			R/W
PWM Cycle Count Register						0xC0FA			R/W
PWM Control Register [0xC0E6] [R/W]
Table 125. PWM Control Register
Bit #	15	14	13	12	11		10	9	8
Field	PWM		Reserved				Prescale		Mode
	Enable						Select		Select
Read/Write	R/W	-	-	-	R/W		R/W	R/W	R/W
Default	0	0	0	0	0		0	0	0
Bit #	7	6	5	4	3		2	1	0
	PWM 3	PWM 2	PWM 1	PWM 0	PWM 3		PWM 2	PWM 1	PWM 0
Field	Polarity	Polarity	Polarity	Polarity	Enable		Enable	Enable	Enable
	Select	Select	Select	Select
Read/Write	R/W	R/W	R/W	R/W	R/W		R/W	R/W	R/W
Default	0	0	0	0	0		0	0	0

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
001	24.00 MHz
010	06.00 MHz
011	01.50 MHz
100	375 kHz
101	93.80 kHz
110	23.40 kHz
111	05.90 kHz

Document #: 38-08015 Rev. *J Page 75 of 99

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