UM0934 datasheet(88/113 Pages) STMICROELECTRONICS

88 / 113 page

Management information base (MIB)

UM0934

88/113

Doc ID 17389 Rev 2

6.5.32

00ABh (Max PGA Gain)

This object stores the Maximum Value Gain to limit the PGA control block amplification.

The confirm message of a CMD_ReadDBRequest will return the current value without

changing it. The CMD_WriteDBRequest will set the value and the confirm message will

return it.

Read/write confirm data format:

The same as request.

6.5.33

00ACh (soft start)

This object stores the time value to reach the fixed output gain during a frame.

The value stored in the MIB object has to be multiplied by a constant interval equal to 13 µs

to calculate the “soft start” duration.

The confirm message of a CMD_ReadDBRequest returns the current value without

changing it. The CMD_WriteDBRequest sets the corresponding time value and the confirm

message returns it.

Read/write confirm data format:

The same as request.

Table 141.

MIB object 000Ch: Write request data format

Byte

Label

Description

Available range

Factory default

0..1

GAIN

Maximum PGA gain

0000h .. 0008h

0008h

2..3

PAD

Padding bytes

0000h

Table 142.

MIB object 0005h: Write error data format

Byte

Returned value

Error description

ERR_ILLEGAL_DATA_COMMAND

Wrong number of data bytes

Table 143.

MIB object 00ACh: Write request data format

Byte

Label

Description

Available range

Factory default

0..2

Soft Start

b0..19: 13 µs delay steps

000000h .. 0FFFFFh

000000h

b20..23: unused

---

Table 144.

MIB object 00ACh: Write error data format

Byte

Returned value

Error description

ERR_ILLEGAL_DATA_COMMAND

Wrong number of data bytes

ERR_REQUEST_NOT_ALLOWED

The writing request failed

UM0934 Datasheet(PDF) 88 Page - STMicroelectronics

UM0934 Datasheet(HTML) 88 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