HD64336901G Renesas Technology, HD64336901G Datasheet - Page 105

• Manufacturer Part Number: HD64336901G
• Description: (HD64xxx Series) 16-BIT MICROCONTROLLER
• Manufacturer: Renesas Technology

(Internal signal)
[Legend]
OSCHLT: Bit 1 in CKCSR
PHISTOP: System clock stop control signal
CKSTA:
CKSWIF:
Notes: 1. 44
OSC:
RC:
:
PHISTOP
External RC clock operation
OSCHLT
CKSWIF
2. The
CKSTA
seventh rising edge of the
OSC
External clock
Internal RC clock
System clock
Bit 0 in CKCSR
Bit 2 in CKCSR
RC
Figure 5.8 External Oscillation Backup Timing
RC
halt duration is the duration from the timing when the
T
chk
48
RC
External clock halt
detected*
OSC
RC
T
chk
clock.
halt
1
halt*
2
Rev. 1.00, 11/03, page 77 of 376
clock stops to the
Internal clock
operation