Fujitsu 8FX User Manual

MB95630H Series
MN702-00009-2v0-E FUJITSU SEMICONDUCTOR LIMITED 97
CHAPTER 7 TIME-BASE TIMER
7.5 Register
[bit4:1] TBC[3:0]: Interval time select bits
These bits select interval time.
[bit0] TCLR: Time-base timer clear bit
This bit clears all bits in the counter of the time-base timer to "1".
Note: When the output of the time-base timer is selected as the count clock for the software watchdog timer,
clear the time-base timer with this bit also clears the software watchdog timer.
bit4:1
Details
Interval time
(Main clock,
F
CH
= 4 MHz)
Interval time
(Main CR clock,
F
CRH
= 4 MHz)
Interval time
(Main CR clock multiplied by
a PLL multiplication rate of
2, F
MCRPLL
= 8 MHz)
Writing "0100"
2
9
× 2/F
CH
(256 µs) 2
9
× 1/F
CRH
(128 µs) 2
9
× 1/F
MCRPLL
(64 µs)
Writing "0000"
2
10
× 2/F
CH
(512 µs) 2
10
× 1/F
CRH
(256 µs) 2
10
× 1/F
MCRPLL
(128 µs)
Writing "0101"
2
11
× 2/F
CH
(1.024 ms) 2
11
× 1/F
CRH
(512 µs) 2
11
× 1/F
MCRPLL
(256 µs)
Writing "0001"
2
12
× 2/F
CH
(2.048 ms) 2
12
× 1/F
CRH
(1.024 ms) 2
12
× 1/F
MCRPLL
(512 µs)
Writing "0110"
2
13
× 2/F
CH
(4.096 ms) 2
13
× 1/F
CRH
(2.048 ms) 2
13
× 1/F
MCRPLL
(1.024ms)
Writing "0010"
2
14
× 2/F
CH
(8.192 ms) 2
14
× 1/F
CRH
(4.096 ms) 2
14
× 1/F
MCRPLL
(2.048 ms)
Writing "0111"
2
15
× 2/F
CH
(16.384 ms) 2
15
× 1/F
CRH
(8.192 ms) 2
15
× 1/F
MCRPLL
(4.096 ms)
Writing "0011"
2
16
× 2/F
CH
(32.768 ms) 2
16
× 1/F
CRH
(16.384 ms) 2
16
× 1/F
MCRPLL
(8.192 ms)
Writing "1000"
2
17
× 2/F
CH
(65.536 ms) 2
17
× 1/F
CRH
(32.768 ms) 2
17
× 1/F
MCRPLL
(16.384 ms)
Writing "1001"
2
18
× 2/F
CH
(131.072 ms) 2
18
× 1/F
CRH
(65.536 ms) 2
18
× 1/F
MCRPLL
(32.768 ms)
Writing "1010"
2
19
× 2/F
CH
(262.144 ms) 2
19
× 1/F
CRH
(131.072 ms) 2
19
× 1/F
MCRPLL
(65.536 ms)
Writing "1011"
2
20
× 2/F
CH
(524.288 ms) 2
20
× 1/F
CRH
(262.144 ms) 2
20
× 1/F
MCRPLL
(131.072 ms)
Writing "1100"
2
21
× 2/F
CH
(1.049 s) 2
21
× 1/F
CRH
(524.288 ms) 2
21
× 1/F
MCRPLL
(262.144 ms)
Writing "1101"
2
22
× 2/F
CH
(2.097 s) 2
22
× 1/F
CRH
(1.049 s) 2
22
× 1/F
MCRPLL
(524.288 ms)
Writing "1110"
2
23
× 2/F
CH
(4.194 s) 2
23
× 1/F
CRH
(2.097 s) 2
23
× 1/F
MCRPLL
(1.049 s)
Writing "1111"
2
24
× 2/F
CH
(8.389 s) 2
24
× 1/F
CRH
(4.194 s) 2
24
× 1/F
MCRPLL
(2.097 s)
bit0 Details
Read access The read value is always "0".
Writing "0" Has no effect on operation.
Writing "1" Clears all bits in the counter of the time-base timer to "1".

Fujitsu 8FX Specifications

General

Brand	Fujitsu
Model	8FX
Category	Computer Hardware
Language	English