PI7C8150ND Pericom Semiconductor, PI7C8150ND Datasheet - Page 84

• Manufacturer Part Number: PI7C8150ND
• Manufacturer: Pericom Semiconductor

Specifications of PI7C8150ND

• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 85C
• Package Type: BGA
• Rad Hardened: No
• Case: BGA
• Dc: 04+
• Lead Free Status / Rohs Status: Not Compliant

14.1.32
14.1.33
14.1.34
14.1.35
UPSTREAM MEMORY CONTROL REGISTER – OFFSET 48h
SECONDARY BUS ARBITER PREEMPTION CONTROL
REGISTER – OFFSET 4Ch
UPSTREAM (S TO P) MEMORY BASE REGISTER – OFFSET 50h
UPSTREAM (S TO P) MEMORY LIMIT REGISTER – OFFSET 50h
Bit
16
31:17
Bit
31:28
Bit
3:0
15:4
Bit
Function
Upstream (S to
P) Memory Base
and Limit Enable
Reserved
Function
Secondary bus
arbiter
preemption
contorl
Function
64 bit addressing
Upstream
Memory Base
Address
Function
Type
R/W
R/O
Type
R/W
Type
R/O
R/W
Type
Description
0: Upstream memory is the entire range except the down stream
memory channel
1: Upstream memory is confined to upstream Memory Base and
Limit (See offset 50
Reset to 0
Reserved. Returns 0 when read. Reset to 0
Description
Controls the number of clock cycles after frame is asserted before
preemption is enabled.
1xxx: Preemption off
0000: Preemption enabled after 0 clock cycles after FRAME asserted
0001: Preemption enabled after 1 clock cycle after FRAME asserted
0010: Preemption enabled after 2 clock cycles after FRAME asserted
0011: Preemption enabled after 4 clock cycles after FRAME asserted
0100: Preemption enabled after 8 clock cycles after FRAME asserted
0101: Preemption enabled after 16 clock cycles after FRAME
asserted
0110: Preemption enabled after 32 clock cycles after FRAME
asserted
0111: Preemption enabled after 64 clock cycles after FRAME
asserted
Description
0: 32 bit addressing
1: 64 bit addressing
Reset to 1
Controls upstream memory base address.
Reset to 00000000h
Description
74
th
and 54
March 19, 2003 – Revision 1.04
th
2-PORT PCI-TO-PCI BRIDGE
for upstream memory range)
ADVANCE INFORMATION
PI7C8150