386 Hardware Reference Manual
Intel® IXP2800 Network Processor
Performance Monitor Unit
11.4.3 Design Block Select Definitions

Once an event is defined, its definition must remain consistent between products. If the definition

changes, it should have a new event selection code. This document contains the master list of all

ESCs in all CHAP-enabled products. Not all of the ESCs in this document are listed in numerical

order. The recommendation is to group similar events within the following ESC ranges.

See Table153.

Table 153. PMU Design Unit Selection (Sheet 1 of 2)

Target Device Target ID PMU Design Group Block # Description
Null xxx xxx 0000 Null (False) Event
PMU_Counter xxx xxx 0001
(PMU)
CHAP Counters Internal
Threshold Events
Event bit 0 CHAP Counter 0
Event bit 1 CHAP Counter 1
Event bit 2 CHAP Counter 2
Event bit 3 CHAP Counter 3
Event bit 4 CHAP Counter 4
Event bit 5 CHAP Counter 5
SRAM Group
SRAM_DP1 001 001
0010
(SRAM Group)
one and only one will be
selected from same group
SRAM channel 0
SRAM channel 1
SRAM channel 2
SRAM channel 3
SRAM d-push
SRAM d-pull
SRAM_DP0 001 010
SRAM_CH3 001 011
SRAM_CH2 001 100
SRAM_CH1 001 101
SRAM_CH0 001 110
DRAM Group
DRAM_CR1 010 000
0011
(DRAM)
one and only one will be
selected from same group
DRAM channel 0
DRAM channel 1
DRAM channel 2
DRAM d-push
DRAM d-pull
DRAM_CR0 010 001
DRAM_DPLA 010 010
DRAM_DPSA 010 011
DRAM_CH2 010 100
DRAM_CH1 010 101
DRAM_CH0 010 110
XPI 000 001 0100
(XPI) XPI
SHaC 000 010 0101
MSF 000 011 0110 Media