SH79F6488PSLASH080PR datasheet(92/152 Pages) SINOWEALTH

Part #	SH79F6488P/080PR

Description	Enhanced 8051 Microcontroller with 20bit Σ-ΔADC and LCD Driver

PDF	152 Pages

Scroll/Zoom	100%

Manufacturer	SINOWEALTH [SINOWEALTH Electronic Ltd]

Direct Link	https://en.sinowealth.com

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92 / 152 page

SH79F6488/SH79F6489

Programming Note:

(1) PWMxEN bit can enable the PWMx module.

(2) PWMxSS (x = 0-2) bit is used to select the ports used as I/O ports or PWM outputs.

(3) EPWMx in IEN1 register and PWMxIE in PWMxCON can enable the PWMx Timer interrupt.

(4) The PWMx timer is control by PWMENx bit. If this bit is set to 1, but the PWMxSS (x = 0-2) bit is cleared to ‘0’, the PWMx

module used as a Timer, if the EPWMx bit in IEN1 register is set to ‘1’ and PWMxIF = 1, the interrupt also can be generated.

PWM clock tPWM

PWMx output

(PWMxS=0)

PWM output duty cycle = 7FH x tPWM

PWMx output

(PWMxS=1)

PWM output period cycle = F0H x tPWM

PWMxP = F0H

PWMxD = 7FH

PWM output example

PWMx clock tPWM

01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 01 02 03 04 05 06 07 08

Write PWMxP = 0DH

Write PWMxD = 07H

PWMx output

(PWMxS=0)

Period cycle = 0FH x tPWM

Duty cycle

= 06H x tPWM

Period cycle = 0DH x tPWM

Duty cycle

= 06H x tPWM

Duty cycle

= 07H x tPWM

PWM output Period or Duty cycle changing example

SH79F6488P/080PR Datasheet(PDF) 92 Page - SINOWEALTH Electronic Ltd