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EVENT PROCESSOR ARRAY (EPA)
1 ROT Reset Opposite Timer
Controls different functions for capture and compare modes.
In Capture Mode:
0 = causes no action
1 = resets the opposite timer
In Compare Mode:
Selects the timer that is to be reset if the RT bit is set.
0 = selects the reference timer for possible reset
1 = selects the opposite timer for possible reset
The TB bit (bit 7) selects which is the reference timer and which is the
opposite timer.
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
EPA
x
_CON (Continued)
x
= 0–1 (8XC196MH)
x
= 0–3 (8XC196MC)
x
= 0–5 (8XC196MD)
Address:
Reset State:
See Table 11-3 on page 11-3
00H
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
Figure 11-10. EPA Control (EPA
x
_CON) Registers (Continued)