HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 727

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Thus the receive margin in asynchronous mode is given by the following formula.
Where M: Receive margin (%)
Assuming values of F = 0, D = 0.5, and N=372 in the above formula, the receive margin formula
is as follows.
When D = 0.5 and F = 0,
M = (0.5 – 1/2 × 372) × 100%
N: Ratio of bit rate to clock (N = 32, 64, 372, 256)
D: Clock duty (D = 0 to 1.0)
L: Frame length (L = 10)
F: Absolute value of clock frequency deviation
M =⎥ (0.5 –
= 49.866%
2N
1
) – (L – 0.5) F –
⎥ D – 0.5⎥
N
Rev.6.00 Sep. 27, 2007 Page 697 of 1268
(1 + F)⎥ × 100%
Section 15 Smart Card Interface
REJ09B0220-0600