MITSUBISHI MICROCOMPUTERS
3822 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
φ CLOCK SYSTEM OUTPUT FUNCTION
The internal system clock φ can be output from port P41 by setting
the φ output control register. Set bit 1 of the port P4 direction reg-
ister to “1” when outputting φ clock.
b7
b0
φ output control register
(CKOUT : address 002A16
)
φ output control bit
0 : port function
1 : φ clock output
Not used (return “0” when read)
Fig. 38 Structure of φ output control register
40