Technical information

15
Section 4 User Interface Circuit
The user system interface cable includes the H8S/2215 microcomputer to emulate the USB
function. The H8S/2215 user interface signal includes a interface circuit as shown in figure 10.
Table 2 shows how to select user interface circuit.
H8S/2215
48 MHz
0.1 F
SW1
1
3
1
3
NC NC
SW3
SW2
QS3390
QS3384
5
NC
0.1 F
DrVcc
DrVss
EXTAL48
XTAL48
D15 to D8
Vcc
Vcc
47 k
47 k
47
47 47
47
47 k
47 k
Vcc
Vcc
Vcc Vcc
Vcc Vcc
P17/TIOCB2/TCLKD
P15/TIOCB1/TCLKC
P13/TIOCD0/TCLKB/A23
P12/TIOCC0/TCLKA/A22
P11/TIOCB0/A21
P10/TIOCA0/A20
PA3/A19/SCK2
P17/TIOCB2/TCLKD/OE
P15/TIOCB1/TCLKC/FSE0
P13/TIOCD0/TCLKB/A23/VPO
P12/TIOCC0/TCLKA/A22/RCV
P11/TIOCB0/A21/VP
P10/TIOCA0/A20/VM
PA3/A19/SCK2/SUSPND
D15/PD7
D8/PD0
P72/TMO0/CS6
to
D15/PD7
D8/PD0
to
Evaluation chip
E6000 emulator HS2214EPI61H
USD+
USD-
UBPM
VBUS
USPND
USD+
USD-
UBPM
VBUS
USPND
OE
FSE0
VPO
RCV
VP
VM
SUSPND
DrVcc
DrVss
EXTAL48
XTAL48
HS2215ECN61H
7
8
User system
47
47 k
Vcc Vcc
The SW3 is used
for controlling the
QS3390 (see No.2
in table 2).
This is used
to control
the QS3384
(see No.3
in table 2).
Figure 10 User Interface Signal