Development Support
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
23-51
23.6.11 I-Bus Support Control Register (ICTRL)
If the processor aborts a fetch of the target of a direct branch (due to an exception), the target is not always
visible on the external pins. Program trace is not affected by this phenomenon.
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Field
CTA
CTB
CTC
CTD
IWP0
IWP1
SRESET
0000_0000_0000_0000
16
1
7
18
1
9
20
21
22
23
24
25
26
27
28
29
30
LSB
31
Field IWP2
IWP3
SIWP0
EN
SIWP1
EN
SIWP2
EN
SIWP3
EN
DIWP0
EN
DIWP1
EN
DIWP2
EN
DIWP3
EN
IFM ISCT_SER
1
1
Changing the instruction show cycle programming starts to take effect only from the second instruction after the
actual mtspr to ICTRL.
SRESET
0000_0000_0000_0000
Addr
SPR 158
Figure 23-24. I-Bus Support Control Register (ICTRL)
Table 23-26. ICTRL Bit Descriptions
Bits
Mnemonic
Description
Function
Non-compressed mode
1
Compressed Mode
2
0:2
CTA
Compare type of comparator A
0xx = not active (reset value)
100 = equal
101 = less than
110 = greater than
111 = not equal
1xx = not active
000 = equal (reset value)
001 = less than
010 = greater than
011 = not equal
3:5
CTB
Compare type of comparator B
6:8
CTC
Compare type of comparator C
9:11
CTD
Compare type of comparator D
12:13
IWP0
I-bus 1st watchpoint
programming
0x = not active (reset value)
10 = match from comparator A
11 = match from comparators (A&B)
14:15
W1
I-bus 2nd watchpoint
programming
0x = not active (reset value)
10 = match from comparator B
11 = match from comparators (A | B)
16:17
IWP2
I-bus 3rd watchpoint
programming
0x = not active (reset value)
10 = match from comparator C
11 = match from comparators (C&D)
18:19
IWP3
I-bus 4th watchpoint
programming
0x = not active (reset value)
10 = match from comparator D
11 = match from comparators (C | D)
0x = not active (reset value)
10 = match from comparator D
11 = match from comparators (C | D)
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...