
MOTOROLA
Chapter 24. READI Module
24-17
Programming Model
.
NOTE
The RWD field of the UDI register is shared with the WD field
of the RWA register.
24.6.1.9 Data Trace Attributes 1 and 2 Registers (DTA1 and DTA2)
The DTA1 and DTA2 registers allow data trace messaging (DTM) to be restricted to reads,
writes or both for a user programmable address range. Two DTA registers allow two
address ranges to be selected for DTM. Refer to
Table 24-15 for register bit descriptions.
Table 24-14. Write Access Status
ERR
DV
Status
0
Write access has completed and no access error occurred
1
0
Write access error occurred (Error Message sent out)
0
1
Write access has not yet completed
11
Not allowed
LSB
8 bit
Reserved – Read as Zeros
LS Byte
ERR
DV
16 bit
Reserved – Read as Zeros
MS Byte
LS Byte
ERR
DV
32 bit
MS Byte
LS Byte
ERR
DV
Figure 24-9. RWD Field Configuration
MSB
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Field
DTEA
RSTI
0000_0000_0000_0000
Addr
0x14 (DTA1), 0x15 (DTA2)
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Field
DTEA
DTSA
RSTI
0000_0000_0000_0000
15
14
13
12
11
10
9
8765
4321
LSB
0
Field
DTSA
TA
RSTI
0000_0000_0000_00
00
Figure 24-10. READI Data Trace Attributes 1 Register (DTA1)
READI Data Trace Attributes 2 Register (DTA2)