Public Version
ICEPick Module
www.ti.com
Table 27-16. ICEPick Control Block Registers
REGISTER
Register Name
0x0
ALL0S
0x1
CONTROL
0x2
LINKING_MODE
0x3-0xF
Reserved
NOTE:
A read to a reserved register returns 0.
Table 27-17. ALL0S
Description
The ALL0S register is a dummy register that returns 0 when read. Writes are ignored. There are not any
side effects to writing or reading this register.
Type
RW
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
TAP_ROUTING
ZERO
Bits
Field Name
Description
Type
Reset
31:24
TAP_ROUTING
See
RW
-
23:0
ZERO
Read return 0's.
R
0x0
Table 27-18. CONTROL
Description
This register control different features of the ICEPick module
Type
RW
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
TAP_ROUTING
RESERVED
RESERVED
RESERVED
RESERVED
DEVICETYPE
REDUCEDTCK
SYSTEMRESET
SYSTEMSTATUS
TDOALWAYSOUT
BLOCKSYSRESET
GLOBALEXEMASK
KEEPPOWERINTLR
CLEARALLEXEFLAG
FREERUNNINGEMUL
GLOBALRELEASEWIR
ADVANCERTCKTIMING
UNNATURALSYSRESET
Bits
Field Name
Description
Type
Reset
31:24
TAP_ROUTING
See
RW
-
23:18
RESERVED
Reserved, Read return reset value, write reset value for further
R
0x0 (ARST)
compatibility
17
ADVANCERTCKTIM When 0, the ICEPick clock voting logic is configured so RTCK lags
RW
0 (ARST)
ING
ITCK.
When 1, the ICEPick clock voting logic is configured so RTCK has
same timing as ITCK
16
RESERVED
Reserved, Read return reset value, write reset value for further
R
-
compatibility
15
UNNATURALSYSR
When 0, the system-reset state is consistent with the application
R
-
ESET
controls.
When 1, the system-reset state is not consistent with the application
controls due to emulation actions or controls.
3600
Debug and Emulation
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated