h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 422

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

Section 13 Timer Connection [H8S/2138 Group]
13.3.8
With the VSYNCO output, the meaning of the signal source to be selected and use or non-use of
modification varies according to the IVI signal source and the waveform required by external
circuitry. The meaning of the VSYNCO output in each mode is shown in table 13.10.
Table 13.10 Meaning of VSYNCO Output in Each Mode
Mode
No signal
S-on-G
mode or
composite
mode
Rev. 4.00 Jun 06, 2006 page 368 of 1004
REJ09B0301-0400
VSYNCO Output
IVI Signal
VFBACKI
input
PDC signal
IVO Signal
IVI signal (without fall
modification or IHI
synchronization)
IVI signal (without fall
modification, with IHI
synchronization)
IVI signal (with fall
modification, without IHI
synchronization)
IVI signal (with fall
modification and IHI
synchronization)
IVG signal
IVI signal (without fall
modification or IHI
synchronization)
IVI signal (without fall
modification, with IHI
synchronization)
IVI signal (with fall
modification, without IHI
synchronization)
IVI signal (with fall
modification and IHI
synchronization)
IVG signal
Meaning of IVO Signal
VFBACKI input is output directly
Meaningless unless VFBACKI input is
synchronized with HFBACKI input
VFBACKI input fall is modified before output
VFBACKI input fall is modified and signal is
synchronized with HFBACKI input before
output
Internal synchronization signal is output
CSYNCI/HSYNCI input (composite
synchronization signal) vertical
synchronization signal part is separated
before output
CSYNCI/HSYNCI input (composite
synchronization signal) vertical
synchronization signal part is separated, and
signal is synchronized with CSYNCI/HSYNCI
input before output
CSYNCI/HSYNCI input (composite
synchronization signal) vertical
synchronization signal part is separated, and
fall is modified before output
CSYNCI/HSYNCI input (composite
synchronization signal) vertical
synchronization signal part is separated, fall is
modified, and signal is synchronized with
CSYNCI/HSYNCI input before output
Internal synchronization signal is output