H8S, H8SX Family E10A-USB Emulator
Section 1 Connecting the Emulator with the User System
R20UT0271EJ0100 Rev. 1.00
Page 7 of 20
May 13, 2011
3.
RES(in)# of pin 4 of the user system connector is a signal line in which the emulator
outputs signals to the MCU. RES(in)# of pin 4 and the user system reset circuit must
be connected to the MCU, as shown in figure 1.6. RES(out)# of pin 7 of the user
system connector is a signal line in which the emulator monitors the RES# signal of
the MCU. The RES# must be pulled up before it is connected to pin 7 of the user
system connector.
RE
S
(in)# (pin 4)
RE
S
(o
u
t)# (pin 7)
User
logic
4.7 k
MCU
Vcc
Vcc
4.7 k
User system
connector
RE
S
#
Figure 1.6 Example of Reset Circuits
4. Connect GND of pins 8 to 10, 12 to 14 of the user system connector to ground in the
user system.
5.
Connect Vcc, pin 11 of the user system connector, to the power supply (Vcc) in the
user system. The input voltage, Vcc, is within the range of guaranteed operation of
the microcomputer.
6.
When the emulator is used, the pin functions listed below are not available.
Table 1.2 Pin Functions Not Available
H8S/2427, H8S/2427R, H8S/2425
G
roup
PCP53, PG4 to PG6
WDTOVF
#
BREQ-A
#
, BACK-A
#
, and BREQO-A
#
CS4
#
(
∗
H8S/2425 group only)
IRQ3-A
#
ADTRGO-A
#
The symbol ‘#’ means that the signal is active-low.
