Oki ML420 Maintenance Manual page 13

(4) USB Controller
The USB Controller detects and controls the USB interfacee.
The following shows the USB Controller access operation.
* Clockout is provided when the original excitation is selected.
42113901TH01 Rev.3
MPU
PO2
P02
RD
WRL
PSEN
Clockout *
A0~A7
USBCS-N
RD-N
D0~D7
(Read)
WRL-N
D0~D7
(Write)
USB Controller
A0~A7
D0~D7
USBCS-N
CE
RD-N
RD
WRL-N
WR
Oki Data CONFIDENTIAL
13 /