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Section 4 User System Interface Circuit

The microcomputer (H8S/2168) is installed in this user system interface cable for emulating the

LPC function. An interface circuit, as shown in figure 11, is provided for the user system interface

signal of the H8S/2168. Figure 12 and table 2 show the settings of switches.

330 Ω
330 Ω
N6
47 kΩ
N7
47 kΩ
HS2168EPI61H
H8S/2168
LAD0, LAD1,
LAD2, LAD3,
LFRAME_N,
LRESET_N,
LCLK, SERIRQ
LSCI, LSMI_N,
PME_N, GA20,
CLKRUN_N,
LPCPD_N
PE0 to 7
PD0 to 5
PE0/LAD0
PE1/LAD1
PE2/LAD2
PE3/LAD3
PE4/LFRAME_N
PE5/LRESET_N
PE6/LCLK
PE7/SERIRQ
PD0/LSCI
PD1/LSMI_N
PD2/PME_N
PD3/GA20
PD4/CLKRUN_N
PD5/LPCPD_N
SW1 to 8
SW9 to 14
EIO board 1 (HS2168EIO61H)

Figure 11 User System Interface Circuit

Pin 3 side Pin 1 side

Figure 12 Settings of Switch