Bit 0: Counter reset control L (CRCL)
Bit 0 controls resetting of ECL. When this bit is cleared to 0, ECL is reset. When 1 is written to
this bit, the counter reset is cleared and the ECL count-up function is enabled.
Bit 0
CRCL
Description
0
ECL is reset
(initial value)
1
ECL reset is cleared and count-up function is enabled
2.
Event counter H (ECH)
ECH is an 8-bit read-only up-counter that operates either as an independent 8-bit event counter or as
the upper 8-bit up-counter of a 16-bit event counter configured in combination with ECL. Either the
external asynchronous event AEVH pin or the overflow signal from lower 8-bit counter ECL can be
selected as the input clock source by bit CH2. ECH can be cleared to H'00 by software, and is also
initialized to H'00 upon reset.
3.
Event counter L (ECL)
ECL is an 8-bit read-only up-counter that operates either as an independent 8-bit event counter or as
the lower 8-bit up-counter of a 16-bit event counter configured in combination with ECH. The
event clock from the external asynchronous event AEVL pin is used as the input clock source. ECL
can be cleared to H'00 by software, and is also initialized to H'00 upon reset.
ECL7
ECL2
ECL1
ECL0
ECL6
ECL5
ECL4
ECL3
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
R
R
R
R
R
R
R
R
Bit
Initial Value
Read/Write
ECH7
ECH2
ECH1
ECH0
ECH6
ECH5
ECH4
ECH3
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
R
R
R
R
R
R
R
R
Bit
Initial Value
Read/Write
244