hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 422

• Manufacturer Part Number: hd66100
• Description: H8/3867 Series
• Manufacturer: Renesas Electronics Corporation.

ECCSR—Event counter control/status register
Bit
Initial value
Read/Write
Counter overflow H
0
1
OVH
R/W
ECH has not overflowed
ECH has overflowed
7
0
OVL
R/W
Counter overflow L
0
1
6
0
ECL has not overflowed
ECL has overflowed
R/W
—
5
0
Channel select
0
1
CH2
R/W
4
0
ECH and ECL are used together as a single-
channel 16-bit event counter
ECH and ECL are used as two independent
8-bit event counter channels
Count-up enable H
0
1
CUEH
Count-up enable L
R/W
0
1
ECH event clock input is disabled.
ECH value is held
ECH event clock input is enabled
3
0
Counter reset control H
0
1
ECL event clock input is disabled.
ECL value is held
ECL event clock input is enabled
H'95
ECH is reset
ECH reset is cleared and
count-up function is enabled
CUEL
R/W
Counter reset control L
2
0
0
1
ECL is reset
ECL reset is cleared
and count-up function
is enabled
CRCH
R/W
1
0
CRCL
R/W
0
0
AEC
407