UM0934 datasheet(86/113 Pages) STMICROELECTRONICS

86 / 113 page

Management information base (MIB)

UM0934

86/113

Doc ID 17389 Rev 2

6.5.30

00A1h (PLC configuration)

This object stores the settings used to configure the modem. Table 137 below lists these

features:

Read/write confirm data format:

The same as request.

Table 137.

MIB object 00A1h: Write request data format

Byte

Label

Description

Available range

Factory default

Operating mode,

bit rate

b0..b2: operating mode

• 0: IDLE (Not Set or Not Configured)

• 1: Client (Master)

• 2: Server (Slave)

• 3: Monitor (Spy or Sniffer)

• 4: Test on Ch.0 (Single tone continuous

transmission on ch. 0)

• 5: Test on Ch.1 (Single tone continuous

transmission on ch. 1)

• 6: Test on Ch.0 and Ch.1 (Alternate tones

continuous transmission)

0 ... 6

IDLE (0)

b3..b4: bit rate

• 0: 1200 bit/s

• 1: 2400 bit/s

0 .. 1

b5..7:

unused

1PLL freq

b0..b2: reserved

b3: zero-crossing Synchronization (PLL)

• 0: Mains frequency is 50 Hz

• 1: Mains frequency is 60 Hz

0 .. 1

50 Hz (0)

b4: reserved

b5..7: unused

Target output

gain

The gain used during transmission, as

attenuation from -31 to 0 dB (3.6.5)

00h..1Fh

10h

3..5

Data 0 frequency (Hz)

Any value in CENELEC

band A, B, C

74000 Hz

(012100h)

6..8

Data 1 frequency (Hz)

Any value in CENELEC

band A, B, C

63300 Hz

(00F744h)

9..11

PAD

Padding bytes

Access layer

mode

1: Physical layer mode (PHY)

2: MAC layer mode (MAC)

1 .. 2

1 (PHY)

TX current

limiting

TX current limiting enable flag:

0: disabled

1: enabled

0 .. 1

0 (Disabled)

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