Section 4 Notes On Use - Renesas HS0008EASF5HE User Manual

Flash microcomputer on-board programming adapter board
Table of Contents

Advertisement

1. The RES pin of the adapter board is an open-collector output. Use a resistor that suits the user
system to pull up the RES pin (around 1-kΩ is recommended).
2. Do not directly connect control signals FWP/FWE, MD0, MD1, IO0, IO1, or IO2 to Vcc or
GND. The user interface of the adapter board is shown figure 4.1.
The resistance value is 20 Ω when analog switch HC4066 is on. It is recommended to pull up
or pull down the resistance with 4.7-kΩ or more. (For revision A, 47 kΩ or more is
recommended.)
3. After program transfer, press the transfer switch (START/STOP) and confirm that the START
LED (red) is turned off. If the user system power supply VIN (Vcc: 2.7 V to 5.25 V, PVcc:
2.7 V to 5.25 V) is turned off while the START LED is on, the user system will be damaged.
4. The host computer (DOS/V compatible machines) with built-in Pentium
the adapter board.
5. If the device has Vcc and PVcc, provide Vcc (pin 18) and PVcc (pin 20) to the VIN pin of the
P1 connector. If the condition is Vcc = PVcc and the device that does not have both Vcc and
PVcc is used, provide Vcc (pin 18) or PVcc (pin 20) to the two VIN pins of the P1 connector.
Vcc/PVcc
1k
S3

Section 4 Notes on Use

S5
S6
Figure 4.1 Control-Signal Circuit Example
Control signals
for controller
22
Analog
switch
HC4066
User system
interface connector
Rev. 1.00 Oct. 02, 2009 Page 17 of 22
Section 4 Notes on Use
®
can be connected to
REJ10J2064-0100

Advertisement

Table of Contents
loading

Table of Contents