NEC UPD789426 Series User Manual page 112

Figure 5-9. Examples of Incorrect Connection for RC Oscillation (1/3)
• Main system clock
CL1
• Main system clock
(n = 0 to 3, 5 to 9)
CL1 CL2
112
CHAPTER 5 CLOCK GENERATOR
(a) Too long wiring
CL2 V
SS
(b) Crossed signal line
PORTn
V
SS
User's Manual U15075EJ2V1UD
• Subsystem clock
XT1 XT2 V
SS
• Subsystem clock
PORTn
(n = 0 to 3, 5 to 9)
XT1 V
XT2
SS