r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 875

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Legend: ×: Don’t care
Bit
1
0
Bit Name
CKE1
CKE0
Initial Value
0
0
R/W
R/W
R/W
Description
Clock Enable 1 and 0
Selects the clock source and SCK pin function.
Asynchronous mode
00: On-chip baud rate generator
01: On-chip baud rate generator
1×: External clock
Clocked synchronous mode
0×: Internal clock (SCK pin functions as clock
1×: External clock (SCK pin functions as clock
Section 15 Serial Communication Interface (SCI, IrDA)
SCK pin functions as I/O port
(Outputs a clock of the same frequency as the
bit rate from the SCK pin.)
(Inputs a clock with a frequency 16 times the
bit rate from the SCK pin.)
output)
input)
Rev. 1.00 Sep. 19, 2008 Page 847 of 1270
REJ09B0466-0100