S5920Q Applied Micro Circuits Corporation, S5920Q Datasheet - Page 90
![](/photos/31/30/313099/296-160-qfp_sml.jpg)
S5920Q
Manufacturer Part Number
S5920Q
Description
Manufacturer
Applied Micro Circuits Corporation
Datasheet
1.S5920Q.pdf
(165 pages)
Specifications of S5920Q
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Operating Temperature (max)
70C
Package Type
PQFP
Rad Hardened
No
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
S5920Q
Manufacturer:
AMCC
Quantity:
5 510
- Current page: 90 of 165
- Download datasheet (3Mb)
S5920 – PCI Product: Operation Registers
The following describes one of the four configuration registers. All four region configuration registers are exactly
the same.
Table 48. Pass-thru Configuration Register
AMCC Confidential and Proprietary
4:3
2:0
Bit
7
6
5
PTADR# mode. This bit is only valid in Active mode. If this bit is 0, PTADR# is not driven at the beginning of a
Active cycle. If this bit is set to 1 (default state), the S5920 will assert PTADR# for one clock cycle after PTATN#
is asserted. The Pass-Thru address is also driven while PTADR# is low. This bit is a don’t care if the device is
operating in Passive mode
Endian conversion. If this bit is set to one, the S5920 will convert the Add-On bus from the default little endian
format to a big endian format.
Write FIFO disabled. If this bit is set to 1, the S5920 will not accept the next piece of data (on a PCI write) until
the Add-On has accepted the previous piece of data. If this bit is set to 0, the S5920 will accept data from the
PCI until the Pass-Thru write FIFO is full.
Prefetch. These bits control the number of DWORDs that the S5920 will prefetch after the current PCI Pass-
Thru read completes. The actual amount of data prefetched depends upon any number of different scenarios.
The prefetch values of “small,” “medium” and “large” are available to tune the system to achieve best overall
performance (i.e. optimize PCI bus transfers or optimize Add-On bus transfers). The Pass-Thru read FIFO can
be enabled to prefetch in either Active mode or Passive mode.
Wait states. In Active mode, the user can program the number of wait states required by the Add-On bus to
complete a transaction. Up to 7 wait states can be programmed (per region). The S5920 will count the number
of clocks programmed into this register before finishing the current data transaction if PTRDY# is high. If
PTRDY# is driven low, additional wait states may be inserted. Bits 2, 1 and 0 are don’t care if operating in Pas-
sive mode.
Description
Revision 1.02 – April 12, 2007
Data Book
DS1596
90
Related parts for S5920Q
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![s5920](/images/no-image3.png)
Part Number:
Description:
Pci Product
Manufacturer:
Applied Micro Circuits Corporation (AMCC)
Datasheet:
![S1212PB20](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![S3485PB21](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![S2060A](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![S19250PRID](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![S2068TB](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![S2004TB](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![PPC405EP-3GB266C](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![PPC440EPX-SUA667T](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![PPC405EP-3LB333C](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![PPC440GP-3FC400C](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![PPC405GP-3KE200C](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![PPC405EP-3GB200C](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![PPC405GPR-3DB266](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet:
![PPC440EP-3JC533C](/images/manufacturer_photos/0/0/70/applied_micro_circuits_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Applied Micro Circuits Corporation
Datasheet: