PI7C21P100BEVB Pericom Semiconductor, PI7C21P100BEVB Datasheet - Page 65

• Manufacturer Part Number: PI7C21P100BEVB
• Description: MCU, MPU & DSP Development Tools 3 Port PCI Bridge Eval Brd
• Manufacturer: Pericom Semiconductor

Specifications of PI7C21P100BEVB

• Lead Free Status / RoHS Status: Not Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not Compliant

8.1.64
MISCELLANEOUS CONTROL REGISTER 2 – OFFSET B8h
BIT
22
21
20
19:18
17
16:0
BIT
15
14:10
9
8
7:0
FUNCTION
Private Device Mask 6
Private Device Mask 5
Private Device Mask 4
RESERVED
Private Device Mask 1
RESERVED
FUNCTION
Short Term Caching
RESERVED
Primary Prefetching
Persistence Control
Secondary Prefetching
Persistence Control
RESERVED
TYPE
RW
TYPE
RO
RW
RW
RW
RW
RW
RW
RW
RW
RO
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DESCRIPTION
Private Device Mask 6
0: Rerouting disabled for device 6
1: Block assertion of S_AD[22] for configuration transactions to
device 6 and assert S_AD[31] instead.
Private Device Mask 5
0: Rerouting disabled for device 5
1: Block assertion of S_AD[21] for configuration transactions to
device 5 and assert S_AD[31] instead.
Private Device Mask 4
0: Rerouting disabled for device 4
1: Block assertion of S_AD[20] for configuration transactions to
device 4 and assert S_AD[31] instead.
Reserved. Returns 00 when read.
Private Device Mask 1
0: Rerouting disabled for device 1
1: Block assertion of S_AD[17] for configuration transactions to
device 1 and assert S_AD[31] instead.
Reserved. Returns 000000000000000000 when read.
DESCRIPTION
Short Term Caching
0: Short term caching is disabled
1: Short term caching is enabled.
Reserved. Returns 00000 when read.
Primary Prefetching Persistence Control
0: PI7C21P100B discontinue prefetching on the secondary bus when
the target disconnects, regardless of how much data has been
buffered
1: PI7C21P100B continues prefetching on the secondary bus despite
target disconnects until either the byte count specified by Primary
Data Buffering Control Register has been prefetched, or the initiator
disconnects.
Secondary Prefetching Persistence Control
0: PI7C21P100B discontinue prefetching on the primary bus when
the target disconnects, regardless of how much data has been
buffered
1: PI7C21P100B continues prefetching on the primary bus despite
target disconnects until either the byte count specified by Primary
Data Buffering Control Register has been prefetched, or the initiator
disconnects.
Reserved. Returns 00h when read.
2-PORT PCI-X TO PCI-X BRIDGE
November 2005 – Revision 1.02
PI7C21P100B