CDCDB2000 datasheet(22/33 Pages) TI1

部品番号	CDCDB2000

部品情報	CDCDB2000 DB2000QL-Compliant 20-Output Clock Buffer for PCIe Gen 1 to Gen 5

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CDCDB2000

SNAS787 – NOVEMBER 2019

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Table 12. BTRDCNT Register Field Descriptions

Bit

Field

Type

Reset

Description

7-6

RESERVED

R

0h

Reserved

5-0

Read Byte Count[5:0]

R/W

8h

Writing to this register configures how many bytes will be read back.

7.6.1.9 SBIMSK1 Register (Address = 8h) [reset = 0h]

SBIMSK1 is shown in Table 13.

Return to the Summary Table.

The SBIMSK1 register allows the SMBus to force enable each output channel individually when the CDCDB2000

is in Side-Band interface mode.

Table 13. SBIMSK1 Register Field Descriptions

Bit

Field

Type

Reset

Description

7

SBI Output Mask, CK7

R/W

0h

This bit overrides the the SBI output disable when set.

0h = SBI Controls Output

1h = Output CK7 Enabled

6

SBI Output Mask, CK6

R/W

0h

This bit overrides the the SBI output disable when set.

0h = SBI Controls Output

1h = Output CK6 Enabled

5

SBI Output Mask, CK5

R/W

0h

This bit overrides the the SBI output disable when set.

0h = SBI Controls Output

1h = Output CK5 Enabled

4

SBI Output Mask, CK4

R/W

0h

This bit overrides the the SBI output disable when set.

0h = SBI Controls Output

1h = Output CK4 Enabled

3

SBI Output Mask, CK3

R/W

0h

This bit overrides the the SBI output disable when set.

0h = SBI Controls Output

1h = Output CK3 Enabled

2

SBI Output Mask, CK2

R/W

0h

This bit overrides the the SBI output disable when set.

0h = SBI Controls Output

1h = Output CK2 Enabled

1

SBI Output Mask, CK1

R/W

0h

This bit overrides the the SBI output disable when set.

0h = SBI Controls Output

1h = Output CK1 Enabled

0

SBI Output Mask, CK0

R/W

0h

This bit overrides the the SBI output disable when set.

0h = SBI Controls Output

1h = Output CK0 Enabled

7.6.1.10 SBIMSK2 Register (Address = 9h) [reset = 0h]

SBIMSK2 is shown in Table 14.

Return to the Summary Table.

The SBIMSK2 register allows the SMBus to force enable each output channel individually when the CDCDB2000

is in Side-Band interface mode.

Table 14. SBIMSK2 Register Field Descriptions

Bit

Field

Type

Reset

Description

7

SBI Output Mask, CK15

R/W

0h

This bit overrides the the SBI output disable when set.

0h = SBI Controls Output

1h = Output CK15 Enabled

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