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HD6433713 Datasheet(PDF) 182 Page - Renesas Technology Corp

Part # HD6433713
Description  single-chip microcontrollers
PDF  324 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6433713 Datasheet(HTML) 182 Page - Renesas Technology Corp

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9.2 Register Descriptions
9.2.1 PWM Control Register (PWCR)
PWCR is an 8-bit write-only register for input clock selection.
Upon reset, PWCR is initialized to H'FE.
Bits 7 to 1: Reserved bits
Bits 7 to 1 are reserved; they always read 1, and cannot be modified.
Bit 0: Clock select (PWCR0)
Bit 0 selects the clock supplied to the 14-bit PWM. This bit is a write-only bit; it always
reads 1.
Bit 0
PWCR0
Description
0
The input clock is
φ/2 (tφ = 2/φ). The conversion period is 16384/φ,
(initial value)
with a minimum modulation width of 1/
φ.
1
The input clock is
φ/4 (tφ = 4/φ). The conversion period is 32768/φ, with a minimum
modulation width of 2/
φ.
Notation:
t
φ: Period of PWM input clock
Bit
Initial value
Read/Write
7
—
1
—
6
—
1
—
5
—
1
—
4
—
1
—
3
—
1
—
0
PWCR0
0
W
2
—
1
—
1
—
1
—
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