Lattice Semiconductor POWR607 User Manual page 15

JTAG Interface Circuits
For power and programming, an FTDI USB UART/FIFO IC converter provides a communication interface between
a PC host and the JTAG programming chain of the POWR607 board. The USB 5 V supply is also used as a source
for the 3.3 V and 1.8 V supply rails. A USB B-type mini socket is provided for the USB connector cable.
The evaluation board can be modified to use a JTAG cable for programming. See
2
and/or I C Communications
Table 7. JTAG Interface Reference
Reference Designators
Part Number
Manufacturer
Web Site
Table 8. JTAG Programming Pin Information
Signal Name
TDO
PM_TDO
PM_TDI
TMS_605
TMS_6AT6
PM_TCK
LEDs
Five red LEDs (D2-D6) are used to reflect I/O's of the preprogrammed processor support demo. Three of the five
LEDs are connected to DIP switch inputs. The LEDs are located in the center of the board, next to the expansion
header. You may use D2-D6 for user-defined outputs for your own custom POWR607 designs.
A blue LED (POWR - D1) is used to indicate USB 5 V power. An amber LED (D11) is used to indicate interrupt
events asserted by the POWR607.
Table 9. User LEDs Reference
Reference Designators
Part Number
Manufacturer
Web Site
Table 10. LED Pin Information
Signal Name
D6
D5
D4
D3
D2
D1
D11
in the Modifying the POWR607/6AT6 Evaluation Board
Item
U8
FT2232H
FTDI (Future)
www.ftdichip.com
Description
Test Data Output
Test Data Output
Test Data Input
Test Mode Select
Test Mode Select
Test Clock
Item
D2-D6
LTST-C190CKT
Lite-On
www.liteonit.com
Description (Processor Support Demo)
IO_5, Watchdog Delay SEL1 input
IO_4, Watchdog Delay SEL0 input
IO_3, Reset Pulse Stretch enable input
IO_2, Watchdog timer interrupt (WDT_Intr) output
IO_1, CPU Reset or Power Fail output
USB 5 V Power
Watchdog Timer Pulse
POWR607/6AT6 Evaluation Board
Description
POWR607 Pin
11:TDO
—
13:TDI
14:TMS
—
12:TCK
Description
15
Adding Support for a JTAG Cable
section for more information.
POWR6AT6
4:TDI
1:TDO
—
—
5:TMS
3:TCK
POWR607 Pin
15
17
18
19
20
na
na