Intel 8XC196MC Benutzerhandbuch
8XC196MC, MD, MH USER’S MANUAL
C-20
EPAx_CON
0
ON/RT
Overwrite New/Reset Timer
The ON/RT bit functions as overwrite new in capture mode and reset
timer in compare mode.
timer in compare mode.
In Capture Mode (ON):
An overrun error is generated when an input capture occurs while the
event-time register (EPA
event-time register (EPA
x
_TIME) and its buffer are both full. When an
overrun occurs, the ON bit determines whether old data is overwritten or
new data is ignored:
new data is ignored:
0 = ignores new data
1 = overwrites old data in the buffer
1 = overwrites old data in the buffer
In Compare Mode (RT):
0 = disables the reset function
1 = resets the ROT-selected timer
1 = resets the ROT-selected timer
Table C-4. EPA
x_CON Addresses and Reset Values
Register
Address
Reset Value
EPA0_CON (8XC196M
x
)
1F40H
00H
EPA1_CON (8XC196M
x
)
1F44H
00H
EPA2_CON (8XC196MC, MD)
1F48H
00H
EPA3_CON (8XC196MC, MD)
1F4CH
00H
EPA4_CON (8XC196MD)
1F50H
00H
EPA5_CON (8XC196MD)
1F54H
00H
EPA
x
_CON (Continued)
x
= 0–1 (8XC196MH)
x
= 0–3 (8XC196MC)
x
= 0–5 (8XC196MD)
Address:
Reset State:
Table C-4
The EPA control (EPA
x
_CON) registers control the functions of their assigned capture/compare
channels.
7
0
x
= 0, 2, 4
TB
CE
M1
M0
RE
WGR
ROT
ON/RT
7
0
x
= 1, 3, 5
TB
CE
M1
M0
RE
AD
ROT
ON/RT
Bit
Number
Bit
Mnemonic
Function