hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 392

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Section 10 Serial Communication Interface
Table 10.4 Relation between n and Clock
n
0
0
2
3
Notes: 1. φ w/2 clock in active (medium-speed/high-speed) mode and sleep mode
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
20
Note: * When SMR is set up to CKS1 = 0, CKS0 = 1.
Rev. 7.00 Mar 10, 2005 page 350 of 652
REJ09B0042-0700
2. φ w clock in subactive mode and subsleep mode
In subactive or subsleep mode, SCI3 can be operated when CPU clock is φw/2 only.
Clock
φ
φw/2 *
φ/16
φ/64
1
φ φ φ φ (MHz)
0.0192
1
1.2288
2
5
8
10
/φw *
2
Maximum Bit Rate
(bit/s)
600
31250
38400
62500
156250
250000
312500
CKS1
0
0
1
1
SMR Setting
n
0
0
0
0
0
0
0
CKS0
0
1
0
1
Setting
N
0
0
0
0
0
0
0