Texas Instruments CC2650DK ユーザーズマニュアル
Bit
31
30
28
27
24
23
0
TDI
Write Enable /
Write Failure
Write Failure
Block Select
Register Number
Register Value
TDO
Access
RW
W
W
RW
Bit
7
6
4
3
0
TDI
Write
Reserved ConnectKey
TDO
Access
W
R
RW
Reset
0
0
b0110
ICEPick™
5.3.2.8
Connect Register
This register guards the device from noise, hot connection of an emulator cable, or accidental scan by a
misconfigured scan controller. This register reduces the chances of accidentally engaging debug functions
due to noise or accidental scans. Refer to
misconfigured scan controller. This register reduces the chances of accidentally engaging debug functions
due to noise or accidental scans. Refer to
and
for more details.
Figure 5-10. Connect Register
Table 5-11. Connect Register
Bit
Field
Width
Type
Reset
Description
Must be 1 to write the Connect Key. A value of 0 is a read.
7
Write Enable 1
W
0
When read, a value of 0 is returned.
6-4
Reserved
3
R
0
Reserved
When this field holds the key-code of 1001, the scan
controller is considered to be connected. All other values are
controller is considered to be connected. All other values are
3-0
ConnectKey
4
RW
0110
the not-connected state. In this state, only a limited number
of IR instructions are valid.
of IR instructions are valid.
5.3.3 ROUTER Scan Chain
This register accesses all TAP linking and control registers. The scan chain is 32 bits long. Refer to
for more information.
Figure 5-11. ROUTER DR Scan Chain
402
JTAG Interface
SWCU117A – February 2015 – Revised March 2015
Copyright © 2015, Texas Instruments Incorporated