VNF9D5F datasheet(35/108 Pages) STMICROELECTRONICS

35 / 108 page

OUTCFGRx

Output configuration register channels 0 to 1

R/W

Address:

0x08h to 0x09h

Type:

R/W

Reset:

Description:

Output configuration register channels 0 to 1

[15:14]

Switching slope control

[13]

[12:8]

Channel phase value [4:0]

00001: resulting phase = 0/32

00010: resulting phase = 1/32

....

11110: resulting phase = 30/32

11111: resulting phase = 31/32

Each output has a specific mode for the digital conversion of its current. This mode is defined through two dedicated bits

SPCR1 and SPCR0 of OUTCFGRx registers.

[7:6]

Current Sense Sampling Point [1:0]

SPCR1: 0 SPCR0: 0 STOP Mode: authorizes digital conversion to be launched at each beginning of On phase of the selected

channel.

SPCR1: 0 SPCR0: 1 START Mode: authorizes digital conversion to be launched just before the end of On phase of the

selected channel.

SPCR1: 1 SPCR0: 0 CONTINUOUS Mode: authorizes digital conversion during all On phase of the selected channel.

SPCR1: 1 SPCR0: 1 FILTERED Mode: authorizes digital conversion like CONTINUOUS mode with the use of Lowpass Filter

to filter datas coming from the conversion. It is useful at low level output current.

[5:4]

PWM frequency selection[1:0]

Each output has a specific ratio for its PWM functionality. This mode is defined through two dedicated bits PWMFCY1 and

PWMFCY0 of OUTCFGRx registers.

PWMFCY1: 0 PWMFCY0: 0 PWM Freq ratio: 1024

PWMFCY1: 0 PWMFCY0: 1 = PWM Freq ratio: 2048

PWMFCY1: 1 PWMFCY0: 0 = PWM Freq ratio: 4096

PWMFCY1: 1 PWMFCY0: 1 = PWM Freq ratio: 512

When a combination will be selected, the output frequency of the selected channel will be the PWM clock input frequency

divided by the defined ratio.

[3]

Set the channel configuration (Bulb/LED)

0: Bulb mode

1: Led mode

Led mode internally set to ‘0’ if parallel mode is selected whatever is the logic state of this bit.

Enabling LED mode both the I²t protection and the capacitive charge mode is disabled.

VNF9D5F

SPI functional description

DS13946 - Rev 8

page 35/108

VNF9D5F Datasheet(PDF) 35 Page - STMicroelectronics

VNF9D5F Datasheet(HTML) 35 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

Datasheet Download

Link URL