h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 533

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Bits 5 to 3—Serial Clock Select (CKS2 to CKS0): These bits, together with the IICX1 (channel
1) or IICX0 (channel 0) bit in the STCR register, select the serial clock frequency in master mode.
They should be set according to the required transfer rate.
Note: Maximum operating frequency of H8S/2169 and H8S/2149 is 10 MHz.
STCR
Bit 5 or 6 Bit 5
IICX
0
1
CKS2
0
1
0
1
Bit 4
CKS1
0
1
0
1
0
1
0
1
Bit 3
CKS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Clock
/28
/40
/48
/64
/80
/100
/112
/128
/56
/80
/96
/128
/160
/200
/224
/256
5 MHz
179 kHz
125 kHz
104 kHz
78.1 kHz
62.5 kHz
50.0 kHz
44.6 kHz
39.1 kHz
89.3 kHz
62.5 kHz
52.1 kHz
39.1 kHz
31.3 kHz
25.0 kHz
22.3 kHz
19.5 kHz
=
Rev. 3.00 Jan 18, 2006 page 505 of 1044
8 MHz
286 kHz
200 kHz
167 kHz
125 kHz
100 kHz
80.0 kHz
71.4 kHz
62.5 kHz
143 kHz
100 kHz
83.3 kHz
62.5 kHz
50.0 kHz
40.0 kHz
35.7 kHz
31.3 kHz
Transfer Rate
=
Section 16 I
REJ09B0280-0300
10 MHz
357 kHz
250 kHz
208 kHz
156 kHz
125 kHz
100 kHz
89.3 kHz
78.1 kHz
179 kHz
125 kHz
104 kHz
78.1 kHz
62.5 kHz
50.0 kHz
44.6 kHz
39.1 kHz
2
=
C Bus Interface