IBM3229P2035
IBM Packet Routing Switch Serial Interface Converter
Advance
face includes a 32-bit debug control input, a 32-bit debug data output, a 32-bit debug data input, a 16-bit
debug address input, and a one bit debug data valid output. The application requests a service offered by the
processor via the debug control input. The results are returned by the processor on the debug data output.
The debug control input definition is shown below.
Bit
#
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Reserved
Port Select
The definition of each field is shown in the following table.
Table 46: Debug Control Field Definitions
Field Name
Function
High on this signal enables debug mode. When this bit is low, the rest of the bits in the
Debug Control Input will be ignored with exception of the Port Status Control field.
Debug Register Enable
Halt Processing
Halt Port Processing
Halt Temperature Compensation
Restrict Temperature Compensation
Halt on Initialization Error
Halt on Temperature Compensation Error
Force DASL Refresh
The value of this field indicates which service the picocode should perform. Valid values:
‘0000’ No operation
‘0001’ Request a read to the address given by the Debug Address
‘0010’ Request a write to the address given by the Debug Address
‘0100’ Dump Local Store Memory
‘0101’ Load Sample Memory
Encoded Debug Select
‘0110’ Dump Sample Memory
‘1000’ Request a delay line sample from the DASL receiver specified by the Port
Select and DASL Select fields.
‘1001’ Update the DASL Data Structure with the Debug Data Input for the DASL
receiver specified by the Port Select and DASL Select fields.
OTHERS Reserved
Appendix A: Data Aligned Serial Link (DASL)
Page 146 of 154
prssi.02.fm
March 1, 2001
IBM [ IBM ]
