Table 10.10 Relation Between N And Clock - Renesas H8/3847R Series Hardware Manual

Section 10 Serial Communication Interface
Notes: The value set in BRR is given by the following equation:
OSC
N=
2n
(8 × 2 × B)
where
B: Bit rate (bit/s)
N: Baud rate generator BRR setting (0 ≤ N ≤ 255)
OSC: Value of φ
n: Baud rate generator input clock number (n = 0, 2, or 3)
(The relation between n and the clock is shown in table 10.10.)

Table 10.10 Relation between n and Clock

n Clock
φ
0
/2 *
1
φ
0 /φ
W
φ/16
2
φ/64
3
Notes: 1. φ
W
and high-speed) mode.
2. φ
W
when the φ
mode.
Rev. 6.00 Aug 04, 2006 page 370 of 680
REJ09B0145-0600
— 1
(Hz)
OSC
SMR Setting
CKS1
0
*
2
0
W
1
1
/2 clock is selected in active (medium- and high-speed) or sleep (medium-
clock is selected in subactive or subsleep mode. SCI3 can be used only
/2 is selected as the CPU operation clock in subactive or subsleep
W
CKS0
0
1
0
1