HD6475328-CP10 HITACHI [Hitachi Semiconductor], HD6475328-CP10 Datasheet - Page 286

• Manufacturer Part Number: HD6475328-CP10
• Description: original Hitachi CMOS microcomputer unit (MCU)
• Manufacturer: HITACHI [Hitachi Semiconductor]

M = {(0.5 – 1/2N) – (D – 0.5)/N – (L – 0.5)F}
When D = 0.5 and F= 0
M = (0.5 –1/2
Basic clock
Receive data
Sync sampling
Data sampling
N:
N:
D:
L:
F:
Receive margin
Ratio of basic clock to bit rate (16)
Duty factor of clock—ratio of High pulse width to Low width (0.5 to 1.0)
Frame length (9 to 12)
Absolute clock frequency deviation
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5
Figure 14-5 Sampling Timing (Asynchronous Mode)
16)
Start bit
100 [%] = 46.875%
–7.5 pulses
271
+7.5 pulses
D0
100 [%]
(1)
(2)
D1