hd64338342hw Renesas Electronics Corporation., hd64338342hw Datasheet - Page 316
hd64338342hw
Manufacturer Part Number
hd64338342hw
Description
Renesas 8-bit Single-chip Microcomputer H8 Family/h8/300l Super Low Power Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HD64338342HW.pdf
(719 pages)
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Section 9 Timers
3. Timer Control Register F (TCRF)
TCRF is an 8-bit write-only register that switches between 16-bit mode and 8-bit mode, selects the
input clock from among four internal clock sources or external event input, and sets the output
level of the TMOFH and TMOFL pins.
TCRF is initialized to H'00 upon reset.
Bit 7: Toggle output level H (TOLH)
Bit 7 sets the TMOFH pin output level. The output level is effective immediately after this bit is
written.
Bit 7
TOLH
0
1
Bits 6 to 4: Clock select H (CKSH2 to CKSH0)
Bits 6 to 4 select the clock input to TCFH from among four internal clock sources or TCFL
overflow.
Bit 6
CKSH2
0
0
0
0
1
1
1
1
Rev. 6.00 Aug 04, 2006 page 280 of 680
REJ09B0145-0600
Bit:
Initial value:
Read/Write:
Bit 5
CKSH1
0
0
1
1
0
0
1
1
Description
Low level
High level
TOLH
W
7
0
Bit 4
CKSH0
0
1
0
1
0
1
0
1
CKSH2
W
6
0
Description
16-bit mode, counting on TCFL overflow signal
Not available
Internal clock: counting on /32
Internal clock: counting on /16
Internal clock: counting on /4
Internal clock: counting on w/4
CKSH1
W
5
0
CKSH0
W
4
0
TOLL
W
3
0
CKSL2
W
2
0
CKSL1
W
1
0
(initial value)
(initial value)
CKSL0
W
0
0
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