Hsynco Output; Table 14.10 Hsynco Output Modes - Renesas H8S/2158 User Manual

Section 14 Timer Connection
14.4.7

HSYNCO Output

With the HSYNCO output, the meaning of the signal source to be selected and use or non-use of
modification varies according to the IHI signal source and the waveform required by external
circuitry. The HSYNCO output modes are shown in table 14.10.

Table 14.10 HSYNCO Output Modes

Mode IHI Signal
No signal HFBACKI
input
S-on-G CSYNCI
mode input
Composite HSYNCI
mode input
Separate HSYNCI
mode input
Rev. 3.00 Jan 25, 2006 page 370 of 872
REJ09B0286-0300
IHO Signal Meaning of IHO Signal
IHI signal (without HFBACKI input is output directly
2fH modification)
IHI signal (with 2fH Meaningless unless there is a double-frequency
modification) part in the HFBACKI input
CL1 signal HFBACKI input 1 interval is changed before output
IHG signal Internal synchronization signal is output
IHI signal (without CSYNCI input (composite synchronization signal)
2fH modification) is output directly
IHI signal (with 2fH Double-frequency part of CSYNCI input (composite
modification) synchronization signal) is eliminated before output
CL1 signal CSYNCI input (composite synchronization signal)
horizontal synchronization signal part is separated
before output
IHG signal Internal synchronization signal is output
IHI signal (without HSYNCI input (composite synchronization signal)
2fH modification) is output directly
IHI signal (with 2fH Double-frequency part of HSYNCI input (composite
modification) synchronization signal) is eliminated before output
CL1 signal HSYNCI input (composite synchronization signal)
horizontal synchronization signal part is separated
before output
IHG signal Internal synchronization signal is output
IHI signal (without HSYNCI input (horizontal synchronization signal) is
2fH modification) output directly
IHI signal (with 2fH Meaningless unless there is a double-frequency
modification) part in the HSYNCI input (horizontal
synchronization signal)
CL1 signal HSYNCI input (horizontal synchronization signal) 1
interval is changed before output
IHG signal Internal synchronization signal is output