Fujitsu F2MC-16LX Hardware Manual page 296

CHAPTER 14 PWC TIMER
[Bits 7, 6] CKS1, CKS0 (clock selection)
These bits are used to select one internal count clock out of the three types listed in Table
Table 14.2-3 "Count clocks of the 16-bit up-count timer".
Table 14.2-3 Count clocks of the 16-bit up-count timer
CKS1
0
0
1
1
• Initialized to 00
• Reading and writing are allowed. However, setting to 11
Note:
Rewriting after timer start is prohibited. Rewrite only before the timer is started or when the
timer is stopped.
[Bits 5, 4] PIS1, PIS0 (Pulse width measurement input pin select)
These bits are used to select the pulse width measurement input pin.
Table 14.2-4 Selection of pulse width measurement input pin
PIS1
0
0
1
1
• Initialized to 00
• Reading and writing are allowed. However, setting to 11
• This bit is only valid in PWC0. (PWC0/PWC1 are used for input). For details, refer to Section
14.3.6 "Operation in Pulse Width Measurement Mode".
Note:
Rewriting after timer start is prohibited. Write only before the timer is started or when the
timer is stopped.
280
CKS0
Divide-by-4 clock of the machine clock (0.25 µs for a machine
0
clock of 16 MHz) [initial value]
Divide-by-16 clock of the machine clock (1.00 µs for a
1
machine clock of 16 MHz)
Divide-by-32 clock of the machine clock (2.00 µs for a
0
machine clock of 16 MHz)
1 Setting prohibited (result of setting is undefined)
at reset
B
PIS0
0 (Selecting PWC0 pin) [initial value]
1 Two inputs selected for compare (rising edge compare)
0 Two inputs selected for compare (falling edge compare)
1 Setting prohibited (result of setting is undefined)
at reset.
B
Count clock selection
is prohibited.
B
Input clock selection
is prohibited.
B