HD6473847RHV Datasheet, PDF (276/546 Pages) Renesas Technology Corp – Renesas 8-Bit Single-Chip Microcomputer H8 Family / H8/300L Super Low Power Series

Section 9 Timers
Initial
Bit
Bit Name Value R/W Description
1
CRCH
0
R/W Counter Reset Control H
Controls resetting of ECH.
0: ECH is reset
1: ECH reset is cleared and count-up function is enabled
0
CRCL
0
R/W Counter Reset Control L
Controls resetting of ECL.
0: ECL is reset
1: ECL reset is cleared and count-up function is enabled
Note: * Only 0 can be written to clear the flag.
Event Counter H (ECH): ECH is an 8-bit read-only up-counter that operates as an independent
8-bit event counter. ECH also operates as the upper 8-bit up-counter of a 16-bit event counter
configured in combination with ECL.
Initial
Bit
Bit Name Value R/W Description
7
ECH7
0
6
ECH6
0
5
ECH5
0
4
ECH4
0
R
Either the external asynchronous event AEVH pin, φ/2,
R
φ/4, or φ/8, or the overflow signal from lower 8-bit counter
ECL can be selected as the input clock source. ECH can
R
be cleared to H'00 by software.
R
3
ECH3
0
R
2
ECH2
0
R
1
ECH1
0
R
0
ECH0
0
R
Rev. 7.00 Mar. 08, 2010 Page 244 of 510
REJ09B0024-0700