HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 630

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

The minimum IR frame pulse width must be 3/16 of the 115.2 kbps bit rate (= 1.63 µsec). With
this minimum pulse width, IRCLK = 921.6 kHz, and so the setting for bits ICK3 to ICK0 to give
the minimum settable pulse width is given by the following equation.
For example, when P = 20 MHz, N = 10.
Table 14.12 shows the settings of bits ICK3 to ICK0 that can be used to obtain the minimum pulse
width for various operating frequencies.
P :
IRCLK: 921.6 kHz (fixed)
N:
N
2
Operating clock frequency
Set value of ICK3 to ICK0 (0
P
IRCLK
– 1
N
15)
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