SW52212 datasheet(37/71 Pages) SILABS

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8.9.2 Si52208 Registers

Table 8.11. Control Register 0. Byte 0

Bit

Name

If Bit = 0

If Bit = 1

Type

Default

Function

Reserved

DIFF4_OE

Disabled

Enabled

Output enable for DIFF_4

DIFF3_OE

Disabled

Enabled

Output enable for DIFF_3

Reserved

DIFF2_OE

Disabled

Enabled

Output enable for DIFF_2

DIFF1_OE

Disabled

Enabled

Output enable for DIFF_1

DIFF0_OE

Disabled

Enabled

Output enable for DIFF_0

Table 8.12. Control Register 1. Byte 1

Bit

Name

If Bit = 0

If Bit = 1

Type

Default

Function

DIFF7_OE

Disabled

Enabled

Output enable for DIFF_7

DIFF6_OE

Disabled

Enabled

Output enable for DIFF_6

Reserved

DIFF5_OE

Disabled

Enabled

Output enable for DIFF_5

Reserved

SS_EN_READ1

Spread Enable software readback

00 = –0.25%; 01 = OFF; 10 = OFF;

11 = –0.5%

The value of SS_EN_READ is

latched on power-up.

SS_EN_READ0

Table 8.13. Control Register 2. Byte 2

Bit

Name

If Bit = 0

If Bit = 1

Type

Default

Function

SS_EN_SW_HW_CTRL

Read back Byte

1[1:0]

SS control by

Byte 2 [6:5]

Enable software control of spread

SS_EN_SW1

Software control of spread 00 = –

0.25%; 01 = OFF; 10 = OFF; 11 = –

0.5%

SS_EN_SW0

Reserved

REF_OE

Disabled

Enabled

Output Enable for REF

REF PWRDN

REF output is

disabled in Pow-

er Down.

REF output is

enabled in Pow-

er Down

Wake-on LAN for REF. To have REF

output enabled in Power Down,

REF_OE needs to be enabled at the

same time.

REF_SLR

REF Output Slew Rate Control 00 =

Slowest; 01 = Slow; 10 = Fast; 11 =

Fastest

Data Sheet

Control Registers

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