225
Table 9.14
Internal Clock Switching and TCG Operation
No.
Clock Levels Before and
After Modifying Bits CKS1
and CKS0
TCG Operation
1
Goes from low level to low level
Clock before
switching
Clock after
switching
Count
clock
TCG
N
N+1
Write to CKS1 and CKS0
2
Goes from low level to high level
Clock before
switching
Clock before
switching
Count
clock
TCG
N
N+1
N+2
Write to CKS1 and CKS0
3
Goes from high level to low level
*
TCG
N
N+1
N+2
Clock before
switching
Clock before
switching
Count
clock
Write to CKS1 and CKS0