Fujitsu FR81S User Manual
CHAPTER 22: 32-BIT OUTPUT COMPARE
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: 32-BIT OUTPUT COMPARE
FUJITSU SEMICONDUCTOR CONFIDENTIAL
10
4.2. Output Control Register (Lower Bit) : OCSL
The bit configuration of the output control register (Lower bit) is shown below.
This register is to control operations of the output compare.
x: Channel number 6, 8, and 10.
y: Channel number 7, 9, and 11.
OCSLxy (Output compare xy): Address Base_addr+0x0B
H
(Access: Byte,
Half-word, Word)
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
IOPy
IOPx
IOEy
IOEx
Reserved Reserved
CSTy
CSTx
Initial value
0
0
0
0
1
1
0
0
Attribute R(RM1),W R(RM1),W
R/W
R/W
R1,WX
R1,WX
R/W
R/W
[bit7] IOP : Interrupt request flag (output compare y)
[bit6] IOP : Interrupt request flag (output compare x)
[bit6] IOP : Interrupt request flag (output compare x)
IOP
State
Read
Write
0
Without interrupt request
Flag (IOP) is cleared.
1
With interrupt request
No effect on operations
⋅
This bit becomes "1" when the count value of free-run timer (TCDT) corresponds to the output compare
compare register (OCCP).
⋅
The interrupt request becomes enabled when the interrupt enable bit (IOE) is "1".
⋅
If a read-modify-write (RMW) instruction is executed, "1" is always read.
[bit5] IOE : Interrupt request enable (Output compare y)
[bit4] IOE : Interrupt request enable (Output compare x)
IOE
State
0
Output compare interrupt request is disabled.
1
Output compare interrupt request is enabled.
⋅
This bit is used to "enable" the output compare interrupt for the compare register.
⋅
While "1" is written to this bit, if the compare match interrupt flag bit (IOP) is set, the output compare
interrupt is generated.
[bit3, bit2] Reserved
The read value is "1".
The written value is "1".
MB91520 Series
MN705-00010-1v0-E
847