Fujitsu F2MC-16LX Hardware Manual page 275

[Bit 4] RLDE (reload enable)
This bit is used to control the start of the reload function. The RCR value is transferred to
UDCR if an underflow occurs when the reload function starts.
RLDE
0
1
[Bit 3] UDCC (UDCR clear)
This bit is used to clear UDCR. Writing "0" to this bit clears UDCR to "0000
Writing "1" has no effect.
[Bit 2] CGSC (counter clear/gate selection)
This bit is used to select a function of external pin ZIN.
CGSC
0
1
[Bit 1 to 0] CGE1, CGE0 (counter clear/gate edge selection)
These bits are used to select a detect edge/level for external pin ZIN.
CGE1 CGE0
0 0 Edge detect prohibited (initial value)
0 1 Falling edge
1 0 Rising edge
1 1 Setting is prohibited
If this bit is rewritten after its start, the count value is not assured.
Reload function
Reload function prohibit (initial value)
Reload function permit
Count clear function (initial value)
Gate function
For selecting the counter clear
function
CHAPTER 13 8/16-BIT UP/DOWN COUNTER/TIMER
ZIN function
For selecting the gate function
Level detect prohibited (count disable)
LOW level
HIGH level
Setting is prohibited
".
H
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