nRF24LE1 Nordic VLSI, nRF24LE1 Datasheet - Page 169

• Manufacturer Part Number: nRF24LE1
• Manufacturer: Nordic VLSI

nRF24LE1 Preliminary Product Specification
The nRF24LE1 includes a two channel Pulse-Width Modulation (PWM) module. The two channels (PWM0
and PWM1) share a common programmable frequency and resolution register and have an individually
controlled duty cycle, as described in
and PWM1.
23.1
23.2
23.3
The nRF24LE1 PWM is a two-channel PWM with a three register interface. The first register, PWMCON ,
enables the PWM function and sets the PWM period length, which is the number of clock cycles for one
PWM period, as shown in
PWM channel. When one of these registers is written, the corresponding PWM signal changes immedi-
ately to the new value. This can result in four transitions within one PWM period, but the transition period
will always have a “DC value” between the old sample and the new sample.
The following table shows how the PWM frequency (or period length) and the PWM duty cycle are con-
trolled by the PWM SFR registers. PWM frequency range is approximately 4 kHz-254 kHz.
Revision 1.1
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Two-channel output.
Frequency-range from 4kHz to 254kHz.
Compact control using few registers for enabling, length-setting and prescaler
PWM
Features
Block diagram
Functional description
Table 106.
Count &
Compare
Prescaler
PWMCON
PWMDC1
PWMDC0
Figure 74. Block diagram of PWM
section 23.3
The registers, PWMDC0 and PWMDC1 , control the duty cycle for each
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and each channel is available at output port pins PWM0
PWM1 (to pin
PWM0 (to pin)