Data Sheet

Document Number: 002-28053 Rev. ** Page 25 of 47
CYBT-343052-02
Clock Frequencies
The CYBT-343052-02 has an integrated 24-MHz crystal on the module. There is no need to add an additional crystal oscillator.
GPIO Port
GPIO ports for this device is shown in Table 4-2 on page 9. The CYBT-343052-02 uses 39 general-purpose I/Os (GPIOs). All GPIOs
support programmable pull-ups and are capable of driving up to 8 mA at 3.3V or 4 mA at 1.8V, except P26, P27, P28, and P29, which
are capable of driving up to 16 mA at 3.3V or 8 mA at 1.8V.
P0, P1, P8-P15, P17, P18, P21-23, P28-P38: all of these pins can be programmed as ADC inputs.
Port 26-Port 29: All four of these pins are capable of sinking up to 16 mA for LEDs. These pins also have the PWM function, which
can be used for LED dimming.
PWM
The CYBT-343052-02 has four PWMs. The PWM module consists of the following:
■ PWM0-5. Each of the six PWM channels contains the following registers:
❐ 16-bit initial value register (read/write)
❐ 16-bit toggle register (read/write)
❐ 16-bit PWM counter value register (read)
■ PWM configuration register shared among PWM0-5 (read/write). This 18-bit register is used:
❐ To configure each PWM channel
❐ To select the clock of each PWM channel
❐ To change the phase of each PWM channel
Figure 12 shows the structure of one PWM.
Figure 12. PWM Block Diagram