Intel 80C196NU ユーザーズマニュアル
8XC196NP, 80C196NU USER’S MANUAL
C-24
EPAx_TIME
EPA
x
_TIME
x
= 0–3
Address:
Reset State:
Table C-9
The EPA time (EPA
x
_TIME) registers are the event-time registers for the EPA channels. In capture
mode, the value of the reference timer is captured in EPA
x
_TIME when an input transition occurs.
Each event-time register is buffered, allowing the storage of two capture events at once. In compare
mode, the EPA triggers a compare event when the reference timer matches the value in EPA
mode, the EPA triggers a compare event when the reference timer matches the value in EPA
x
_TIME.
EPA
x
_TIME is not buffered for compare mode.
15
8
EPA Timer Value (high byte)
7
0
EPA Timer Value (low byte)
Bit
Number
Function
15:0
EPA Time Value
When an EPA channel is configured for capture mode, this register contains the value of
the reference timer when the specified event occurred.
the reference timer when the specified event occurred.
When an EPA channel is configured for compare mode, write the compare event time to
this register.
this register.
Table C-9. EPA
x_TIME Addresses and Reset Values
Register
Address
Reset Value
EPA0_TIME
1F82H
0000H
EPA1_TIME
1F86H
0000H
EPA2_TIME
1F8AH
0000H
EPA3_TIME
1F8EH
0000H