ispPAC-POWR607

Lattice Semiconductor Evaluation Board User’s Guide

Introduction

Lattice Semiconductor’s Power Manager II ispPAC

-POWR607 device simpliﬁes power supply design by integrat-

ing the analog and digital functions of power supply management (sequencing, monitoring, reset generation into a

single device). This device provides designers with a rich set of features: precision comparators with a built-in volt-

age reference, MOSFET drivers and a programmable logic device (PLD) for sequencing and supervisory logic

functions or reset control. Conﬁguration for all subsystems in the ispPAC-POWR607 device is stored in non-volatile

CMOS

memory. Programming is performed via the industry-standard JTAG IEEE 1149.1 interface.

PAC-POWR607-EV Evaluation Board

The PAC-POWR607-EV evaluation board (Figure 1) allows the designer to quickly conﬁgure and evaluate the isp-

PAC-POWR607 device on a fully assembled printed-circuit board. The board supports a 32-pin QFN package,

pads for user I/O, a JTAG programming cable connector, LEDs and switches. JTAG programming signals can be

generated by using an ispDOWNLOAD

programming cable connected between the evaluation board and a PC’s

parallel (printer) port. Both analog and digital features of the ispPACPOWR607device can be easily conﬁgured

using PAC-Designer

software.

Figure 1. PAC-POWR607-EV Evaluation Board

Programming Interface

Lattice Semiconductor’s ispDOWNLOAD cable can be used to program the ispPAC-POWR607 device on the eval-

uation board. This cable plugs into a PC-compatible’s parallel port connector, and includes active buffer circuitry

inside its DB-25 connector housing. The other end of the ispDOWNLOAD cable terminates in an 8-pin 0.100” pitch

header connector, which plugs directly into a mating connector, (J3) provided on the PAC-POWR607-EV evaluation

board.

Important Note:

The board must be un-powered when connecting, disconnecting, or reconnecting the ispDOWN-

LOAD Cable. Always connect the ispDOWNLOAD Cable's GND pin (black wire), before connecting any other JTAG

pins. Failure to follow these procedures can in result in damage to the ispPAC-POWR607 device and render the

board inoperable.