Specifications

Input/Output Controller Replacement Instructions 39
Additional Information
The following output is normally displayed:
Hardware is DEC21140
dec21140_ds=0x603531A0, registers=0x4D800000, ib=0x300612C0
rx ring entries=64, tx ring entries=128
rxring=0x300613C0, rxr shadow=0x603532C0, rx_head=5, rx_tail=0
txring=0x30061800, txr shadow=0x60353400, tx_head=33, tx_tail=33, tx_count=0
PHY link up
Far End Fault Indication (For FX Interface): OFF
CSR0=0xFE02E080, CSR3=0x300613C0, CSR4=0x30061800, CSR5=0xFC660000
CSR6=0x320CA002, CSR7=0xFFFFA261, CSR8=0xE0400000, CSR9=0xFFFDC3FF
CSR11=0xFFFE0000, CSR12=0xFFFFFF09, CSR15=0xFFFFFEC8
DEC21140 PCI registers:
bus_no=2, device_no=0
CFID=0x00091011, CFCS=0x22800006, CFRV=0x02000022, CFLT=0x0000FF00
CBIO=0x08312001, CBMA=0x01800000, CFIT=0x28140100, CFDA=0x00000000
MII registers:
Register 0x00: 2000 784F 2000 5C01 0081 0000 0000 0000
Register 0x08: 0000 0000 0000 0000 0000 0000 0000 0000
Register 0x10: 0000 0000 0000 0009 0000 0001 8060
Register 0x18: 8020 0820 0000 3800 A3B9
:
<additional information omitted>
:
The field that determines overrun is “CSR8” (shown in bold in the output above). This field is in
hexadecimal format. To determine an overrun value, take the first four (high-order) digits, drop the
first one from the left, convert the remaining three digits to the decimal equivalent, and then divide
that number in half.
In the example above, there are overflows recorded in CSR8=0xE0400000. To determine the
overflow value from this example, take the first four (high-order) digits (E040), drop the first digit
(E), and convert the remaining number (040) to the decimal equivalent (64). Then divide that number
in half. The overrun value in this example is 32.
Additional Information
This section includes additional information that you might need when replacing an I/O controller
in a Cisco 7200 series router or Cisco uBR7200 series router.
I/O Controller Connection Equipment and Port Signaling
This section contains connection equipment and pinout information for the console, auxiliary, and
Fast Ethernet ports on the I/O controller.
Note You can install an I/O controller with or without a Fast Ethernet port in the Cisco 7200 series
routers (including a Cisco 7206 as a router shelf in a Cisco AS5800 Universal Access Server);
however, when you install an I/O controller with a Fast Ethernet port in a Cisco 7202, the system
software automatically disables the port. Therefore, the Fast Ethernet port connection equipment and
pinout information in this section does not apply to a Cisco 7202 that has an installed I/O controller
with a Fast Ethernet port.