Development Trigger Semaphore (DTS)
MPC5644A Microcontroller Reference Manual, Rev. 6
Freescale Semiconductor
1697
38.5.2
DTS Startup Register (DTS_STARTUP)
The DTS_STARTUP register is used for tool detection and startup information exchange between the tool
and software running on the microcontroller.
Address: D0x0000
Access: Restricted R/W
1
1
The DTS_ENABLE register can be read by the e200z4 core, but can only be written by a Nexus Read Write Access
(RWA).
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
0
0
0
0
0
0
0
0
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
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
DTS_
EN
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 38-4. DTS_ENABLE register
Table 38-3. DTS_ENABLE field descriptions
Name
Description
31
DTS_EN
DTS Enable
Controls whether the DTO signal is routed to the EVTO pin.
0: DTS output is disabled.
1: DTS output is enabled. Any bit set in the DTS_SEMAPHORE register will assert the DTS Trigger
Output signal (DTO).
Note:
The DTS Enable bit is cleared by a device reset (either the assertion of the external RESET
or by an internally generated reset). A JTAG reset does not change the state of this register.
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