NEC PD754144 - Manual (Page 111)

CHAPTER 6 PERIPHERAL HARDWARE FUNCTION
111 User’s Manual U10676EJ3V0UM
Figure 6-18. Example of Incorrect Resonator Connection (3/3)
(d) Current flowing through power line of oscillator
(potential at points A, B, and C changes)
µPD754144
CL1 CL2 V SS
PORTn
(n = 3, 6-8)
V DD
A B
High current
µ
• PD754144 µ
• PD754244
µPD754244
X1 X2 V SS
PORTn
(n = 3, 6-8)
V DD
A C
High current
B
(e) Signal fetched
µPD754144
CL1 CL2 V SS
µ • PD754144 µ
• PD754244
µ PD754244
X1 X2 V SS
(3) Divider circuit
The divider circuit divides the output of the system clock oscillator to create various clock signals.