at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 595

• Manufacturer Part Number: at32uc3b0512-z2ues
• Description: 32-bit Avr Microcontroller
• Manufacturer: ATMEL Corporation

27.4.3
Figure 27-4. JTAG and Boundary-scan Access
27.4.4
Table 27-6.
27.4.5
32059J–12/2010
Pin Name
TCK
TMS
TDI
TDO
JTAG master
Block Diagram
I/O Lines Description
Product Dependencies
2nd JTAG
TMS
TMS
I/O Line Description
device
TCK
TCK
Test Mode Select, sampled on rising TCK.
Pin Description
Test Clock Input. Fully asynchronous to system clock frequency.
Test Data In, sampled on rising TCK.
Test Data Out, driven on falling TCK.
TDO TDI
TDO
TDI
In order to use this module, other parts of the system must be configured correctly, as described
below.
TCK
TMS
TDO
TDI
JTAG
Instruction Register
Instruction register
scan enable
Controller
TAP
32-bit AVR device
JTAG data registers
Part specific registers
Device Identification
Service Access Bus
By-pass Register
Reset Register
Data register
Boundary scan enable
scan enable
interface
Register
SAB
...
Input
Output
Type
Input
Input
Internal I/O
lines
AT32UC3B
Active Level
595