IDT VersaClock 6E 5P49V6965, VersaClock 6E 5P49V6975 User Manual

11

12

10

9

13

1

8 7

6

5

4

3

2

VersaClock® 6E – 5P49V6965 and 5P49V6975
Programmer Board User Guide

Introduction

The VersaClock® 6E programmer board is made to ease the programming of blank 5P49V6965 or 5P49V6975 devices. With the
on-board USB interface, the IDT Timing Commander
for configuration and programming of its OTP memory.

™ GUI can be used to communicate with the VersaClock® 6E device in the socket

Board Overview

Use Figure 1 and Table 1 to identify board items and features.

Figure 1. Programmer Board Overview

1©2019 Integrated Device Technology, Inc. June 17, 2019

VersaClock® 6E – 5P49V6965 and 5P49V6975 Programmer Board User Guide

Table 1. 5P49V6965/5P49V6975 Programmer Board Pins and Functions

Label Number Name On-board Connector Label Function

1 USB J4 USB connector.

2 I2C / SEL JP14, JP16 Jumpers to connect I2C or control SEL0/1.

3 OE / CLKSEL JP12, JP13 Jumpers to control OE and CLKSEL.

4 Ref Clock Input J1 SMA to connect alternative Ref Clock.

5 Input Clock Select JP17

6 Output 0 JP5 Differential input clock, Sens output.

7 Operation Mode JP1 Jumper to select I2C or Hardware Select Mode.

8 VDDO0 JP2 Optional VDD for output 0.

9 DUT Socket U4 Socket for 5P49V6965/6975. Pin 1 is lower left.

10 Output 1 Diff J2, J3 Optional output 1 differential connection.

11 Outputs 1, 2, 3, 4 J7, J9, J10, J11 2 × 2 pin probe points for outputs 1, 2, 3 and 4.

12 VDDO1, 2, 3, 4 JP3, JP4, JP6, JP8 Optional VDD for outputs 1, 2, 3 and 4.

13 Ground — Ground reference for general purpose.

Select between on-board 25MHz crystal and alternative

Ref Clock.

Connecting the Board to a Computer

The programmer board can be plugged into a USB port of a personal computer directly, or, a USB extension cable can be used if that is
more convenient. The on-board USB-to-I2C bridge (FTDI chip) does the data communication and the +5V in the USB bus powers the
on-board regulator. The board can fully function with just the USB connection to a computer.

JP 14 and JP16 Functionality

JP14 and JP16 have multiple functions. The center pin of JP14 connects to the SEL1/SDA pin on the 5P49V6965/6975 and the center pin
of JP16 connects to the SEL0/SCL pin on the 5P49V6965/6975.

Figure 2. JP14 and JP16 Jumpers

The bottom pins connect to the FTDI USB-to-I2C bridge. To use Timing Commander to communicate to the chip, jumpers need to be
placed between the center and bottom pins as in Figure 3.

2©2019 Integrated Device Technology, Inc. June 17, 2019

Figure 3. JP14 and JP16 for I2C

Figure 4. JP14 and JP16 for SEL0/1

VersaClock® 6E – 5P49V6965 and 5P49V6975 Programmer Board User Guide

After programming multiple configurations, the 5P49V6965/6975 can be restarted in Hardware Select mode and then the SEL0 and SEL1
pins can be used to select a configuration. The SEL0/1 pins on the 5P49V6965/6975 have pull-down resistors on the chip so when
leaving the pins open, like Figure 2, both SEL0 and SEL1 are low and configuration 0 is selected. The upper pins in JP14 and JP16 are
pulled up to VDD so when placing jumpers as in Figure 4, the SEL0 and SEL1 pins are pulled up. Placing the jumpers as in Figure 4
selects configuration 3. Also see the chapter about the Mode jumper to use the Hardware Select mode.

JP14 and JP16 also allow wiring of the I2C bus into a system. As mentioned above, the bottom pins connect to the FTDI USB-to-I2C
bridge. For SCL connect to the bottom pin of JP16, for SDA connect to the bottom pin of JP14 and for ground use the GND test point to
the right of JP14 and JP16. These three wires can be connected to a 5P49V6965/6975 that is assembled in a system so Timing
Commander can be used to control this remote 5P49V6965/6975.

3©2019 Integrated Device Technology, Inc. June 17, 2019