Renesas H8SX/1658R - Manual (Page 38)

Section 4 User System Interface Circuits
Rev. 2.00 Sep. 08, 2008 Page 22 of 30
REJ10J1868-0200
1 k Ω
47 k Ω
Vcc
MD_CLK
PM0-PM4
VBUS
DrVcc
USD-
USD+
DrVss
LPT16244 Monitoring circuit
MD_CLK
PM0-PM4
VBUS
DrVcc
USD-
USD
DrVss
Sub-MCU
User system
Figure 15 User System Interface Circuit (4)
Note: The power-supply circuit shown above is turned on/off by the setting of the SW1 jumper
pin on HS1658RECN61H. Ensure that the jumper pin is inserted to [ON] on
HS1658RECN61H when connecting the emulator (with HS1658RECN61H attached) to
the user system or supplying power to DrVCC. Otherwise the emulator product, user
system interface board, and user system will be damaged.