ST62T80B datasheet(45/78 Pages) STMICROELECTRONICS

tên linh kiện	ST62T80B

Giải thích chi tiết về linh kiện	8-BIT OTP/EPROM MCU WITH LCD DRIVER EEPROM AND A/D CONVERTER

PDF	78 Pages

Scroll/Zoom	100%

nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

Logo

45 / 78 page

45/78

ST62T80B/E80B

AUTO-RELOAD TIMER (Cont’d)

It should be noted that the reload values will also

affect the value and the resolution of the duty cycle

of PWM output signal. To obtain a signal on ARTI-

Mout, the contents of the ARCP register must be

greater than the contents of the ARRC register.

The maximum available resolution for the ARTI-

Mout duty cycle is:

Resolution = 1/[255-(ARRC)]

Where ARRC is the content of the Reload/Capture

pare Register, ARCP, must be in the range from

(ARRC) to 255.

The ARTC counter is initialized by writing to the

ARRC register and by then setting the TCLD (Tim-

er Load) and the TEN (Timer Clock Enable) bits in

the Mode Control register, ARMC.

Enabling and selection of the clock source is con-

trolled by the CC0, CC1, SL0 and SL1 bits in the

Status Control Register, ARSC1. The prescaler di-

vision ratio is selected by the PS0, PS1 and PS2

bits in the ARSC1 register.

In Auto-reload Mode, any of the three available

clock sources can be selected: Internal Clock, In-

ternal Clock divided by 3 or the clock signal

present on the ARTIMin pin.

Figure 24. Auto-reload Timer PWM Function

COUNTER

COMPARE

VALUE

RELOAD

PWM OUTPUT

255

000

VR001852

1091

ST62T80B bảng dữ liệu(PDF) 45 Page - STMicroelectronics