¡ Semiconductor
MSC5301B-02
FUNCTIONAL DESCRIPTION
Pin Functional Description
• OS1 (Pin 39), OS2 (Pin 40), f (Pin 41)
These are pins for the RC oscillation circuit. Connect external resistors and a capacitor as shown
below. When inputting the external clock pulse, input it to OS1 pin. OS2 and f pins should be
left open.
OS1
RS
OS2
f
CT
RT
The relation of frame frequency fFR and internal clock frequency ff is shown by the following
equation.
(RC oscillation frequency = internal clock frequency)
ff = 4 x 8 x fFR
In addition, the relation of frame frequency fFR and frame synchronizing signal frequency
fFRAM is shown by the following equation.
fFRAM = fFR/2
• CS0 (Pin 30), CS1 (Pin 31)
Chip select input pins. Master and slave modes are determined by CS0 and CS1 as shown in
the table below. A maximum of 4 devices can be connected in this manner. Use the master mode
when using a single chip.
CS0
CS1
L
L
H
L
L
H
H
H
Operation mode
Master mode
Slave mode
Slave mode
Slave mode
H : VCC level
L : GND level
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