SL28PCIe10

.......................................Document #: Rev 1.1 Page 5 of 16

Control Registers

Byte 0: Control Register 0

Bit

@Pup

Name

Description

7

HW

RESERVED

RESERVED

6

0

RESERVED

RESERVED

5

1

RESERVED

RESERVED

4

0

RESERVED

RESERVED

3

0

RESERVED

RESERVED

2

0

RESERVED

RESERVED

1

0

RESERVED

RESERVED

0

1

PD_Restore

Save configuration when PD# is asserted

0 = Config. cleared, 1 = Config. saved

Byte 1: Control Register 1

Bit

@Pup

Name

Description

7

1

RESERVED

RESERVED

6

0

PLL1_SS_DC

Select for down or center SS

0 = Down spread, 1 = Center spread

5

0

RESERVED

RESERVED

4

0

RESERVED

RESERVED

3

0

RESERVED

RESERVED

2

1

RESERVED

RESERVED

1

0

RESERVED

RESERVED

0

1

RESERVED

RESERVED

Byte 2: Control Register 2

Bit

@Pup

Name

Description

7

1

REF_OE

Output enable for REF

0 = Output Disabled, 1 = Output Enabled

6

1

RESERVED

RESERVED

5

1

RESERVED

RESERVED

4

1

RESERVED

RESERVED

3

1

RESERVED

RESERVED

2

1

RESERVED

RESERVED

1

1

RESERVED

RESERVED

0

1

RESERVED

RESERVED

Byte 3: Control Register 3

Bit

@Pup

Name

Description

7

1

RESERVED

RESERVED

6

1

RESERVED

RESERVED

5

1

RESERVED

RESERVED

4

1

RESERVED

RESERVED

3

1

RESERVED

RESERVED

2

1

RESERVED

RESERVED

1

1

RESERVED

RESERVED