Fujitsu FR81S User Manual
CHAPTER 24: 16-BIT FREE-RUN TIMER
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : 16-BIT FREE-RUN TIMER
FUJITSU SEMICONDUCTOR CONFIDENTIAL
34
[bit15, bit14] Reserved
Always write 0 to this bit.
[bit13, bit12] AS431, AS430: A/D activation compare free-run timer selector selection bits
AS31/AS111/
AS191/AS271/
AS351/AS431
AS30/AS110/
AS190/AS270/
AS350/AS430
Function
0
0
Free-run timer 0
0
1
Free-run timer 1
1
0
Free-run timer 2
Others
Setting disabled (operation is not guaranteed)
⋅
These bits are used to configure the free-run timer assigned to the A/D activation compare.
Note:
Before configuring these bits, make sure to verify that the free-run timer is inactive.
[bit11, bit10] Reserved
Always write 0 to this bit.
[bit9, bit8] AS421, AS420: A/D activation compare free-run timer selector selection bits
AS21/AS101/
AS181/AS261/
AS341/AS421
AS20/AS100/
AS180/AS260/
AS340/AS420
Function
0
0
Free-run timer 0
0
1
Free-run timer 1
1
0
Free-run timer 2
Others
Setting disabled (operation is not guaranteed)
⋅
These bits are used to configure the free-run timer assigned to the A/D activation compare.
Note:
Before configuring these bits, make sure to verify that the free-run timer is inactive.
[bit7, bit6] Reserved
Always write 0 to this bit.
MB91520 Series
MN705-00010-1v0-E
941