Freescale Semiconductor Target Interface MMDS0508 - Manual (Page 73)

App en dix
MMDS Commands
A–73 MMDS0508 Target Interface
;R:
Search for a read bus cycle only.
;W
: Search for a write bus cycle only.
;RW:
Search for either a read or write bus cycle.
LIR:
Search for a specific LIR-signal value:
LIR=H searches for LIR high.
LIR=L searches for LIR low.
LIR=X searches for LIR either high or low.
A bit set in both the clips and masks detects the pattern if the bit is high (-H). A bit is
clear in clips but set in masks detects the pattern if the bit is low (-L). A bit clear in a
mask means that pattern detection does not depend on the state of the clip.
Examples:
SP 0x1000
Sets accesses at address $1000 to be part of the analyzer search pattern.
SP , 4
Sets accesses with the data value 4, at any address, to be part of the analyzer search
pattern.
SP 8 20
Sets accesses with the data value 20, at address 8, to be part of the analyzer search
pattern.
NOTE Mask bits that have the value 0 are “Don’t Care” bits: for those
positions of an address, data, or clips value, either a 0 or a 1 trips the
trigger. Mask bits set to 1 identify positions whose values must match
those of the specified address, data, or clip value. For Address
0xC000, Mask 0xFFFC, loading any of four values in the address bus
1 RED 9 RED
2 ORG 10 ORG
3 YEL 11 YEL
4 GRN 12 GRN
5 BLU 13 BLU
6 LIR 14 VLT
7 GRY 15 GRY
Bit: Signal: Bit: Signal:
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