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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.
In Capture Mode (ON):
An overrun error is generated when an input capture occurs while the
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:
0 = ignores new data
1 = overwrites old data in the buffer
In Compare Mode (RT):
0 = disables the reset function
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:
Tabl e 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