Fujitsu FR81S User Manual
CHAPTER 20: RELOAD TIMER
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : RELOAD TIMER
FUJITSU SEMICONDUCTOR CONFIDENTIAL
FUJITSU SEMICONDUCTOR CONFIDENTIAL
14
MOD[1:0]
Mode
RELD
OUTL
TOUT output
H width
L width
00
Single
0
0
TMRLRA+1
-
1
-
TMRLRA+1
1
0
TMRLRA+1
1
01
Dual
0
0
TMRLRB+1
TMRLRA+1
1
TMRLRA+1
TMRLRB+1
1
0
TMRLRB+1
TMRLRA+1
1
TMRLRA+1
TMRLRB+1
10
Compare
0
0
See the explanation below.*
1
1
0
1
11
Capture
0
0
TMRLRA+1
-
1
-
TMRLRA+1
1
0
TMRLRA+1
1
*: H width and L width are as follows in the compare
mode:
⋅ When TMRLRB < TMRLRA
(OUTL=0) "L" width of TMRLRA-TMRLRB + 1, "H" width of TMRLRB
(OUTL=1) "H" width of TMRLRA-TMRLRB + 1, "L" width of TMRLRB
(OUTL=1) "H" width of TMRLRA-TMRLRB + 1, "L" width of TMRLRB
⋅ When TMRLRB = 0
(OUTL=0) "L" output fixed
(OUTL=1) "H" output fixed
(OUTL=1) "H" output fixed
⋅ When TMRLRB > TMRLRA
(OUTL=0) "H" output fixed
(OUTL=1) "L" output fixed
(OUTL=1) "L" output fixed
⋅ When TMRLRB = TMRLRA
(OUTL=0) "L" output of 1 cycle, "H" width of TMRLRB
(OUTL=1) "H" output of 1 cycle, "L" width of TMRLRB
(OUTL=1) "H" output of 1 cycle, "L" width of TMRLRB
The following formula represents the TOUT output time (TOUT) when the register is used as the single
mode and dual mode in the interval time mode:
mode and dual mode in the interval time mode:
TOUT = (Setting value of this register + 1) × count source cycle
* : The formula described above is effective only in the interval timer mode.
MB91520 Series
MN705-00010-1v0-E
741