Epson E0C6001 Technical Manual page 36

R00 (when FOUT is
selected)
Fig. 4.4.3
FOUT output waveform
XFOUT0, XFOUT1
Table 4.4.4
FOUT frequency selection
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Output Port)
Special output port data (0F3H D0)
Controls the FOUT (clock) output.
When 1 is written: Clock output
When 0 is written: Low level (DC) output
Reading:
FOUT output can be controlled by writing data to R00. After
an initial reset, this register is set to 0.
Figure 4.4.3 shows the output waveform for FOUT output.
R00 register
FOUT output
waveform
FOUT frequency control (0FDH D0, 0FDH D1)
Selects the output frequency when R00 port is set for FOUT
output.
XFOUT1
0
0
1
1
After an initial reset, these registers are set to 0.
Valid
0 1
XFOUT0 Frequency Selection
0
1
0
1
F1
F2
F3
F4
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