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
32
FRS7: Address 12D8
H
(Access: Byte, Half-word, Word)
bit31
bit30
bit29
bit28
bit27
bit26
bit25
bit24
Reserved
AS471
AS470
Reserved
AS461
AS460
Initial value
0
0
0
0
0
0
0
0
Attribute
R0,W0
R0,W0
R/W
R/W
R0,W0
R0,W0
R/W
R/W
bit23
bit22
bit21
bit20
bit19
bit18
bit17
bit16
Reserved
AS451
AS450
Reserved
AS441
AS440
Initial value
0
0
0
0
0
0
0
0
Attribute
R0,W0
R0,W0
R/W
R/W
R0,W0
R0,W0
R/W
R/W
bit15
bit14
bit13
bit12
bit11
bit10
bit9
bit8
Reserved
AS431
AS430
Reserved
AS421
AS420
Initial value
0
0
0
0
0
0
0
0
Attribute
R0,W0
R0,W0
R/W
R/W
R0,W0
R0,W0
R/W
R/W
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
Reserved
AS411
AS410
Reserved
AS401
AS400
Initial value
0
0
0
0
0
0
0
0
Attribute
R0,W0
R0,W0
R/W
R/W
R0,W0
R0,W0
R/W
R/W
[bit31, bit30] Reserved
Always write 0 to this bit.
[bit29, bit28] AS471, AS470: A/D activation compare free-run timer selector selection bits
AS71/AS151/
AS231/AS311/
AS391/AS471
AS70/AS150/
AS230/AS310/
AS390/AS470
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.
[bit27, bit26] Reserved
Always write 0 to this bit.
MB91520 Series
MN705-00010-1v0-E
939