h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 399

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Bits 7 and 6—Input Synchronization Mode Select 1 and 0 (SIMOD1, SIMOD0): These bits
select the signal source of the IHI and IVI signals.
Bit 5—Synchronization Signal Connection Enable (SCONE): Selects the signal source of the
FRT FTI input and the TMR1 TMCI1/TMRI1 input.
Bit 4—Input Capture Start Bit (ICST): The TMRX external reset input (TMRIX) is connected
to the IHI signal. TMRX has input capture registers (TICR, TICRR, and TICRF). TICRR and
TICRF can measure the width of a short pulse by means of a single capture operation under the
control of the ICST bit. When a rising edge followed by a falling edge is detected on TMRIX after
the ICST bit is set to 1, the contents of TCNT at those points are captured into TICRR and TICRF,
respectively, and the ICST bit is cleared to 0.
Bit 7
SIMOD1
0
1
Bit 5
SCONE
0
1
Bit 4
ICST
0
1
Mode
Normal connection
Synchronization signal
connection mode
Bit 6
SIMOD0
0
1
0
1
Description
The TICRR and TICRF input capture functions are stopped
[Clearing condition]
When a rising edge followed by a falling edge is detected on TMRIX
The TICRR and TICRF input capture functions are operating
(Waiting for detection of a rising edge followed by a falling edge on TMRIX)
[Setting condition]
When 1 is written in ICST after reading ICST = 0
(Initial value)
Mode
No signal
S-on-G mode
Composite mode
Separate mode
(Initial value)
FTIA
input
IVI
signal
FTIA
Description
Section 13 Timer Connection [H8S/2138 Group]
FTIB
FTIB
input
TMO1
signal
Rev. 4.00 Jun 06, 2006 page 345 of 1004
Description
HFBACKI input
HSYNCI input
IHI Signal
CSYNCI input
HSYNCI input
FTIC
FTIC
input
VFBACKI
input
FTID
FTID
input
IHI
signal
VFBACKI input
IVI Signal
PDC input
PDC input
VSYNCI input
TMCI1
TMCI1
input
IHI
signal
REJ09B0301-0400
(Initial value)
TMRI1
TMRI1
input
IVI
inverse
signal