Fujitsu MB90335 Series Hardware Manual page 317

CHAPTER 13 PWC TIMER
13.2 Register of PWC Timer
[bit7, bit6] CKS1 and CKS0 (clock selection)
Internal count clock can be selected from three types shown in Table 13.2-3.
Table 13.2-3 Count Clock of 16 Bit Up Count Timer
CKS1 CKS0
0 0 Clock of machine clock divided by 4 (0.17μs for 24 MHz machine clock) [Initial value]
0 1 Clock of machine clock divided by 16 (0.67μs for 24 MHz machine clock)
1 0 Clock of machine clock divided by 32 (1.337μs for 24 MHz machine clock)
1 1 Setting disabled (Undefined)
• Initialized to "00
• Read and write are enabled. However, setting "11
Note:
Rewriting after the startup is an interdiction. Always perform the write operation before start or after
stop.
[bit5, bit4] PIS1, PIS0 (pulse width measurement input pin selection)
The pulse width measurement input pin is selected.
Table 13.2-4 Selection of Pulse Width Measurement Input Pin
PIS1
0
0
1
1
• Initialized to "00
• Read and write are enabled. However, do not set "01
Note:
Rewriting after the startup is an interdiction. Always perform the write operation before start or after
stop.
296
" at reset.
B
PIS0
0 (The pin PWC is selected.) [Initial value]
1 Setting disabled
0 Setting disabled
1 Setting disabled (Undefined)
" at reset.
B
FUJITSU MICROELECTRONICS LIMITED
Operation mode
" is a interdiction.
B
Operation mode
", "10 ", and "11
B B
MB90335 Series
".
B
CM44-10137-6E