NXP Semiconductors MPC5566 - Page 1131

Nexus
MPC5566 Microcontroller Reference Manual, Rev. 2
25-38 Freescale Semiconductor
Development control register 2 is shown in Figure 25-16 and its fields are described in Table 25-27.
NOTE
The EOC bits in DC1 must be programmed to trigger EVTO
on watchpoint
occurrence for the EWC bits to have any effect.
4–3
EIC[1:0]
EVTI control.
00 EVTI is used for synchronization (program trace/ data trace)
01 EVTI is used for debug request
1X Reserved
2–0
TM[2:0]
Trace mode. Any or all of the TM bits may set, enabling one or more traces.
000 No trace
1XX Program trace enabled
X1X Data trace enabled
XX1 Ownership trace enabled
1
The output port mode control bit (OPC) and MCKO divide bits (MCK_DIV) are shown for clarity. These functions are
controlled globally by the NPC port control register (PCR). These bits are writable in the PCR but have no effect.
Nexus Reg: 0x0003 Access: R/W
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
EWC
000000000000000000000000
W
Reset00000000000000000000000000000000
Figure 25-16. Development Control Register 2 (DC2)
Table 25-27. DC2 Field Descriptions
Field Description
31–24
EWC[7:0]
EVTO watchpoint configuration. Any or all of the bits in EWC may be set to configure the EVTO watchpoint.
00000000No Watchpoints trigger EVTO
1XXXXXXXWatchpoint #0 (IAC1 from Nexus1) triggers EVTO
X1XXXXXXWatchpoint #1 (IAC2 from Nexus1) triggers EVTO
XX1XXXXXWatchpoint #2 (IAC3 from Nexus1) triggers EVTO
XXX1XXXXWatchpoint #3 (IAC4 from Nexus1) triggers EVTO
XXXX1XXXWatchpoint #4 (DAC1 from Nexus1) triggers EVTO
XXXXX1XXWatchpoint #5 (DAC2 from Nexus1) triggers EVTO
XXXXXX1XWatchpoint #6 (DCNT1 from Nexus1) triggers EVTO
XXXXXXX1Watchpoint #7 (DCNT2 from Nexus1) triggers EVTO
23–0 Reserved
Table 25-26. DC1 Field Descriptions (continued)
Field Description