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Nexus
MPC5566 Microcontroller Reference Manual, Rev. 2
25-76
Freescale Semiconductor
25.17.2.1 Development Control Registers (DC1 and DC2)
The development control registers control the basic development features of the NXDM module.
Access: R/W
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
R OPC
MCK_DIV
EOC
0
0
WEN
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
0
C
0
0
0
0
0
0
0
0
0
EIC
TM
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 25-55. Development Control Register 1 (DC1)
Table 25-47. DC1 Field Description
Field
Description
31
OPC
1
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).
Output port mode control
0 Reduced port mode configuration
1 Full port mode configuration
30–29
MCK_DIV
MCK_DIV - nexus message clock divide ratio
00 MCKO is 1x system bus clock frequency.
01 MCKO is 1/2x system bus clock frequency.
10 MCKO is 1/4x system bus clock frequency.
11 MCKO is 1/8x system bus clock frequency.
28–27
EOC
EVTO control
00 EVTO upon occurrence of watchpoint (internal or external)
01 EVTO upon entry into system-level debug mode (ipg_debug)
1X Reserved
26–25
Reserved, read as 0.
24
WEN
Watchpoint trace enable
0 Watchpoint messaging disabled
1 Watchpoint messaging enabled.
23–5
Reserved, read as 0.
4–3
EIC
EVTI control
00 EVTI for synchronization (Data Trace)
01 Reserved
10 EVTI disabled for this module
11 Reserved
2–0
TM
Trace mode
000 No Trace
1XX Reserved
X1X Data trace enabled
XX1 Reserved
Summary of Contents for MPC5566
Page 81: ...Introduction MPC5566 Microcontroller Reference Manual Rev 2 1 24 Freescale Semiconductor...
Page 135: ...Signal Description MPC5566 Microcontroller Reference Manual Rev 2 2 54 Freescale Semiconductor...
Page 189: ...Reset MPC5566 Microcontroller Reference Manual Rev 2 4 20 Freescale Semiconductor...
Page 603: ...Flash Memory MPC5566 Microcontroller Reference Manual Rev 2 13 38 Freescale Semiconductor...
Page 609: ...SRAM MPC5566 Microcontroller Reference Manual Rev 2 14 6 Freescale Semiconductor...
Page 1073: ...MPC5566 Microcontroller Reference Manual Rev 2 22 36 Freescale Semiconductor...
Page 1185: ...Nexus MPC5566 Microcontroller Reference Manual Rev 2 25 92 Freescale Semiconductor...