ST7LITE3XF2 datasheet(68/173 Pages) STMICROELECTRONICS

68 / 173 page

ST7LITE3xF2

68/173

DUAL 12-BIT AUTORELOAD TIMER 3 (Cont’d)

AUTORELOAD REGISTER (ATR1H)

Read / Write

Reset Value: 0000 0000 (00h)

AUTORELOAD REGISTER (ATR1L)

Read / Write

Reset Value: 0000 0000 (00h)

Bits 11:0 = ATR1[11:0] Autoreload Register 1.

This is a 12-bit register which is written by soft-

ware. The ATR1 register value is automatically

loaded into the upcounter CNTR1 when an over-

flow occurs. The register value is used to set the

PWM frequency.

PWM OUTPUT CONTROL REGISTER

(PWMCR)

Read/Write

Reset Value: 0000 0000 (00h)

Bits 7:0 = OE[3:0] PWMx output enable.

These bits are set and cleared by software and

cleared by hardware after a reset.

0: PWM mode disabled. PWMx Output Alternate

Function disabled (I/O pin free for general pur-

pose I/O)

1: PWM mode enabled

PWMx CONTROL STATUS REGISTER

(PWMxCSR)

Read / Write

Reset Value: 0000 0000 (00h)

Bits 7:2= Reserved, must be kept cleared.

Bit 1 = OPx PWMx Output Polarity.

This bit is read/write by software and cleared by

hardware after a reset. This bit selects the polarity

of the PWM signal.

0: The PWM signal is not inverted.

1: The PWM signal is inverted.

Bit 0 = CMPFx PWMx Compare Flag.

This bit is set by hardware and cleared by software

by reading the PWMxCSR register. It indicates

that the upcounter value matches the Active DCRx

0: Upcounter value does not match DCRx value.

1: Upcounter value matches DCRx value.

BREAK CONTROL REGISTER (BREAKCR)

Read/Write

Reset Value: 0000 0000 (00h)

Bits 7:6 = Reserved. Forced by hardware to 0.

Bit 5 = BA Break Active.

This bit is read/write by software, cleared by hard-

ware after reset and set by hardware when the

BREAK pin is low. It activates/deactivates the

Break function.

0: Break not active

1: Break active

ATR11 ATR10

ATR9

ATR8

ATR7

ATR6

ATR5

ATR4

ATR3

ATR2

ATR1

ATR0

0OE3

0OE2

0OE10OE0

000

OPx

CMPFx

BPEN

PWM3

PWM2

PWM1

PWM0

ST7LITE3XF2 数据表(PDF) 68 Page - STMicroelectronics

ST7LITE3XF2 数据表(HTML) 68 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载

链接网址

ST7LITE3XF2 数据表(PDF) 68 Page - STMicroelectronics

ST7LITE3XF2 数据表(HTML) 68 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表 下载

链接网址

数据表下载