Fujitsu FR81S User Manual
CHAPTER 25: 16-BIT OUTPUT COMPARE
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: 16-BIT OUTPUT COMPARE
FUJITSU SEMICONDUCTOR CONFIDENTIAL
13
[bit13] BTS0: Buffer transfer selection bit
BTS0
Function
0
Transfer is activated when 0 is detected (ch.0).
1
Transfer is activated when a compare clear match occurs (ch.0).
⋅
This bit is used to select the timing of data transfer from the output compare buffer register (OCCPB0)
to the output compare register (OCCP0).
⋅
When this bit is set to "0":
Data transfer is activated when the count value of "0" is detected on the 16-bit free-run timer.
⋅
When this bit is set to "1":
Data transfer is activated when a compare clear match occurs on the 16-bit free-run timer.
⋅
For ch.2 and 4, the operation is the same as ch.0.
[bit12] CMOD: Output level inversion mode bit
CMOD
Function
0
For the compare mode control register: MOD0=0
The compare output 0 is immediately inverted
when there is a match with the output compare
register (OCCP0).
For the compare mode control register: MOD1=0
The compare output 1 is immediately inverted
when there is a match with the output compare
register (OCCP1).
For the compare mode control register: MOD0=1 or
MOD1=1
Set to "1" when a match is detected in up-count mode.
Reset to "0" when a match is detected in down-count
mode.
1
For the compare mode control register: MOD0=0
The compare output 0 is immediately inverted
when there Is a match with the output compare
register (OCCP0).
For the compare mode control register: MOD1=0
The compare output 1 is immediately inverted
when there is a match with the output compare
register (OCCP0 or OCCP1).
For the compare mode control register: MOD0=1 or
MOD1=1
Set to "0" when a match is detected in up-count mode.
Reset to "1" when a match is detected in down-count
mode.
MB91520 Series
MN705-00010-1v0-E
968