Section 9 Timers
Rev. 6.00 Aug 04, 2006 page 322 of 680
REJ09B0145-0600
4. Register Configuration
Table 9.20 shows the register configuration of the asynchronous event counter.
Table 9.20 Asynchronous Event Counter Registers
Name
Abbr.
R/W
Initial Value
Address
Event counter control/status register
ECCSR
R/W
H'00
H'FF95
Event counter H
ECH
R
H'00
H'FF96
Event counter L
ECL
R
H'00
H'FF97
Clock stop register 2
CKSTP2
R/W
H'FF
H'FFFB
9.7.2
Register Descriptions
1. Event Counter Control/Status Register (ECCSR)
OVH
CUEL
CRCH
CRCL
OVL
—
CH2
CUEH
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
R/(W)
*
R/W
R/W
R/W
R/(W)
*
R/W
R/W
R/W
Bit
Initial Value
Read/Write
Note:
*
Bits 7 and 6 can only be written with 0, for flag clearing.
ECCSR is an 8-bit read/write register that controls counter overflow detection, counter resetting,
and halting of the count-up function.
ECCSR is initialized to H'00 upon reset.
Summary of Contents for H8/38342
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