Hitachi H8/3827R Series Hardware Manual page 272

Table 10.4 Relation between n and Clock
n Clock
0 ø
*1
0 ø /2 /ø
w
2 ø/16
3 ø/64
Notes: 1. ø w/2 clock in active (medium-speed/high-speed) mode and sleep mode
2. ø w clock in subactive mode and subsleep mode
3. In subactive or subsleep mode, SCI3 can be operated when CPU clock is øw/2 only.
Table 10.5 shows the maximum bit rate for each frequency. The values shown are for active
(high-speed) mode.
Table 10.5 Maximum Bit Rate for Each Frequency (Asynchronous Mode)
OSC (MHz)
0.0384*
2
2.4576
4
10
16
* : When SMR is set up to CKS1 = "0", CKS0 = "1".
Table 10.6 shows examples of BRR settings in synchronous mode. The values shown are for
active (high-speed) mode.
266
CKS1
0
*2
0
w
1
1
Maximum Bit Rate
(bit/s)
600
31250
38400
62500
156250
250000
SMR Setting
CKS0
0
1
0
1
Setting
n N
0 0
0 0
0 0
0 0
0 0
0 0