Microchip MPFS460TLS handleiding
Handleiding
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FlashPro Express User Guide
50
Some designers of high-integrity boards (military and avionic) may arrange their boards so that TRST is tied to
ground via a weak pull-down resistor. The purpose of this is to hold the JTAG state-machine in a reset state by
default, so that even with TCK oscillating, some sudden ion bombardment or other electrical even will not
suddenly throw the JTAG state-machine into an unknown state. If your design also uses a weak pull-down
resistor on TRST on your board, then enabling the “Drive TRST” flag will be required to force the JTAG state-
machine out of reset to permit programming to take place. With most boards, there is no need to select this flag.
FlashPro5
The FlashPro5 is a JTAG and a SPI based programmer for flash based Microsemi devices.
The FlashPro5 output is supplied via a connector to which a detachable 10-pin cable is fitted. The connector on
the FlashPro5 unit is a 2x5, RA male Header connector, which is manufactured by AMP and has a manufacturer’s
part number of 103310-1. This is a standard 2x5, 0.1 pitch connector which is keyed. Use the 10 pin right-angle
header, AMP P/N 103310-1 (DigiKey P/N A26285-ND) for FlashPro4 and use the 10 pin straight header, AMP
P/N 103308-1 (DigiKey P/N A26267-ND) for the straight version.
The signals on the pins of the FlashPro5 10-pin connector are shown in the figure below.
Figure 26 · FlashPro5 10-Pin Connector
Note: All ground pins must be connected. The rectangular shape shows connections on the programmer
itself. Arrows show current flow towards or from the rectangular programmer.
The table below shows a description of the signals.
Table 5 · FlashPro5 Signal Description
Signal Description
VPUMP 3.3V Programming voltage
GND Signal reference
TCK/SCK JTAG clock; SPI clock
TDI/SDI JTAG data input to device; SPI MOSI
TDO/SDO JTAG data output from device; SPI MISO
TMS/SS# JTAG mode select; SPI Chip Select
nTRST Programmable output pin may be set to off, toggle, low, or high level
VJTAG Reference voltage from the target board
PROG_MODE IGLOO v2 family - Used for switching from VCC 1.2V to 1.5V during programming
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Productinformatie
| Merk | Microchip |
| Model | MPFS460TLS |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 10235 MB |
