CT-161-CD Fujitsu Semiconductor America Inc, CT-161-CD Datasheet - Page 40

• Manufacturer Part Number: CT-161-CD
• Description: KIT 16LX FOR MB90F387
• Manufacturer: Fujitsu Semiconductor America Inc
• Series: F²MC-16LXr
• Type: MCUr

Specifications of CT-161-CD

• Contents: Board, Cable, CD
• For Use With/related Products: MB90F387S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 865-1103

40
MB90385 Series
6. Clock Timer Outline
Interval timer function
Interval time of clock timer
The clock timer is a 15-bit free-run counter that increments in synchronization with sub clock.
• Interval time is selectable among 7 choices, and generation of interrupt request is allowed for each interval.
• Provides operation clock to the subclock oscillation stabilizing wait timer and watchdog timer.
• Always uses subclock as a count clock regardless of settings of clock selection register (CKSCR).
• In the clock timer, a bit corresponding to the interval time overflows (carry-over) when an interval time, which
• If an interrupt by overflow is permitted (WTC: WTIE=1), an interrupt request is generated upon setting an
• Interval time of clock timer is selectable among the following seven choices :
SCLK: Sub clock frequency
Values in parentheses “( )” are calculation when operating with 8.192 kHz clock.
is specified by interval time selection bit, is reached. Then overflow flag bit is set (WTC: WTOF=1).
overflow flag bit.
Sub clock cycle
SCLK (122 s)
2
2
2
2
2
2
2
8
9
10
11
12
13
14
/SCLK (31.25 ms)
/SCLK (62.5 ms)
/SCLK (125 ms)
/SCLK (250 ms)
/SCLK (500 ms)
/SCLK (1.0 s)
/SCLK (2.0 s)
Interval time