15.1.12 Electrical Specifications

FlashPro6 is a JTAG-based programmer for Flash based Microchip devices.

The FlashPro6 output is supplied via a connector to which a detachable 10-pin cable is fitted. The connector on the FlashPro6 unit is a 2x5, RA male Header connector that is manufactured by 3M and has a manufacturer’s part number of N2510-5002-RB. This is a standard 2x5, 0.1-pitch keyed connector. Use the 10-pin right-angle header, 3M P/N N2510-5002-RB (DigiKey P/N MHE10K-ND) for FlashPro6 and use the 10-pin straight header,

The following figure shows the signals on the pins of the FlashPro6 10-pin connector.

The following table lists the signals.

Some designers of high-integrity military and avionic boards 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, 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 is a JTAG- and a SPI-based programmer for Flash-based Microchip 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 that is manufactured by AMP and has a manufacturer’s part number of 103310-1. This is a standard 2x5, 0.1-pitch keyed connector. 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 following figure shows the signals on the FlashPro5 10-pin connector pins.

The following table lists the signals.

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, 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.

The FlashPro4 output is supplied via a connector to which a detachable 10-pin cable is fitted. The connector on the FlashPro4 unit is a 2x5, RA male Header connector that is manufactured by AMP and has a manufacturer’s part number of 103310-1. This is a standard 2x5, 0.1-pitch keyed connector. 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 following figure shows the signals on the FlashPro4 10-pin connector pins.

The following table lists the signals.

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 event 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, 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.

The FlashPro3 output is supplied via a connector to which a detachable 10-pin cable is fitted. The connector on the FlashPro3 unit is a 2x5, RA male Header connector that is manufactured by AMP and has a manufacturer’s part number of 103310-1. This is a standard 2x5, 0.1-pitch keyed connector. Use the 10-pin right-angle header, AMP P/N 103310-1 (DigiKey P/N A26285-ND) for FlashPro5/4/3/3X and use the 10-pin straight header, AMP P/N 103308-1 (DigiKey P/N A26267-ND) for the straight version.

The following figure shows the signals on the FlashPro3 10-pin connector pins.

The following table lists the signals.

Some designers of high-integrity military and avionic boards 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, 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.

This section describes the FlashPro JTAG switching characteristics.

The following figure shows the JTAG switching characteristics.