MIKROE-11 mikroElektronika, MIKROE-11 Datasheet - Page 32

• Manufacturer Part Number: MIKROE-11
• Description: Development Boards & Kits - AVR BIGAVR2 DEVELOPMENT SYSTEM
• Manufacturer: mikroElektronika

Specifications of MIKROE-11

• Rohs: yes
• Product: Development Kits
• Tool Is For Evaluation Of: ATMEGA128
• Core: AVR8
• Interface Type: IDC10, JTAG, RS-232, USB
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 bit
• For Use With: ATmega, AT90

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JTAG CONNECTOR
JTAG connector can be used as a serial programming interface or as a part of on-chip debug-
ger. JTAG connector pin marked as nSRST is directly connected to the RESET push-button.
In that way, on-chip debugger is able to use the RESET push-button as external reset source.
Additionally, the debugger can pull the RESET pin low in order to reset the whole system.
The JTAG interface is accessed through the four microcontroller pins:
Figure 42
TDI: Test Data In
TDO: Test Data Out
TMS: Test Mode Select
TCK: Test Clock
JTAG circuit diagram
Figure 43
JTAG connection