E1 Datasheet, PDF(25/50 Page) Renesas Technology Corp

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E1 Datasheet, PDF (25/50 Pages) Renesas Technology Corp – E1/E20 Emulator

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E1/E20 Emulator

Designing the User System

2.4.7. JTAG Interface Connection (RX610, RX621, RX62N, RX62T and RX63T Groups) between the 38-

pin connector

Figure 2.14 shows a recommended circuit for connection between the 38-pin connector and the RX610, RX621,

RX62N, RX62T or RX62G Group MCUs in JTAG Interface Connection.

Pulled-up at 4.7kÎ© to 10 kÎ©

38-pin

connector*3

Vcc Vcc

VCC 12,14

Vcc Vcc

Vcc

MCU

TRCLK 6

TRSYNC 32

TRDATA0 30

TRDATA1 28

TRDATA2 26

TRDATA3 24

TRCLK

TRSYNC

TRDATA0

TRDATA1

TRDATA2

TRDATA3

TCK 15

TRST# 21

TDO 11

TMS 17

TDI 19

RES#

Pulled-down

at 4.7kÎ© to 10 kÎ©

TCK

TRST#

TDO

TMS

TDI

RES#

MD1

MD0 2

EMLE 3

GND

Reset

circuit

Open-collector

buffer*2

1, 4 ,7 ,10,13,16,18,20,

22,23,25,27,29,31,

Not

33,34,35,36,37,38

connected

Circuit for

selection of the

operating mode

MD1*1

MD0*1

EMLE*1

Figure 2.14 Recommended Circuit for Connection between the 38-Pin Connector and the RX610,

RX621, RX62N, RX62T or RX62G Group MCUs in JTAG Interface Connection

Notes: 1.

For processing of signals MD0, MD1 and EMLE, refer to section 2.5, Notes on Connection.

The output of the reset circuit of the user system must be open collector.

When programming flash memory using programming software, connect the emulator connector

and target MCU with reference to figure 2.7 for RX610 or figure 2.8 and figure 2.9 for RX621,

RX62N, RX62T, or RX62G. When debugging, refer to figure 2.14 for the emulator connector pin

numbers.

The GND bus lead at the center of the 38-pin connector must be grounded.

If the hot plug-in facility is to be used, connection to the emulator must be with the TRST# and EMLE signals for

the emulator at the low and high levels, respectively, when power is supplied to the user system (at the time of a

system reset). Ensure that a ceramic capacitor (approx. 0.1 ÂµF) is installed between the RES# pin and GND and

the TRST# signal is pulled down, and include circuitry which can switch the EMLE signal to the high or low level.

R20UT0399EJ0700 Rev.7.00

Feb 01, 2014

Page 25 of 50

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