MCP37231 datasheet(101/144 Pages) MICROCHIP

101 / 144 page

MCP37231/21-200 AND MCP37D31/21-200

DS20005322D-page 101

 2014-2016 Microchip Technology Inc.

ADDRESS 0X6B – PLL CALIBRATION

R/W-0

R/W-1

R/W-0

FCB<6:2>

PLL_CAL_TRIG

FCB<1:0>

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-3

FCB<6:2>: Factory-Controlled Bits. This is not for the user. Do not change default settings.

bit 2

PLL_CAL_TRIG: Manually force recalibration of the PLL at the state of bit transition(1)

Toggle from “1” to “0”, or “0” to “1” = Start PLL calibration

bit 1-0

FCB<1:0>: Factory-Controlled Bits. This is not for the user. Do not program.

Note

See PLL_CAL_STAT in Address 0xD1 (Register 5-80) for calibration status indication.

ADDRESS 0X6D – PLL OUTPUT AND OUTPUT CLOCK PHASE(1)

U-0

R/W-0

─

EN_PLL_CLK

FCB<1>

DCLK_DLY_PLL<2:0>

FCB<0>

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-6

Unimplemented: Not used

bit 5

EN_PLL_CLK: Enable PLL output clock

= PLL output clock is enabled to the ADC core

= PLL clock output is disabled (Default)

bit 4

FCB<1>: Factory-Controlled Bit. This is not for the user. Do not change default settings.

bit 3-1

DCLK_DLY_PLL<2:0>: Output clock is delayed by the number of VCO clock cycles from the nominal PLL output(2)

111 = Delay of 15 cycles

110 = Delay of 14 cycles

• • •

001 = Delay of one cycle

000 = No delay (Default)

bit 0

FCB<0>: Factory-Controlled Bit. This is not for the user. Do not change default setting.

Note 1:

This register has effect only when the PLL clock is selected by the CLK_SOURCE bit in Address 0x53

(Register 5-8) and PLL circuit is enabled by EN_PLL bit in Address 0x59 (Register 5-14).

This bit setting enables the output clock phase delay. This phase delay control option is applicable when PLL is

used as the clock source and the decimation is not used.

MCP37231 Datasheet(PDF) 101 Page - Microchip Technology

MCP37231 Datasheet(HTML) 101 Page - Microchip Technology

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