H8S2110B RENESAS [Renesas Technology Corp], H8S2110B Datasheet - Page 266

• Manufacturer Part Number: H8S2110B
• Description: Renesas 16-Bit Single-Chip Microcomputer Renesas H8S Family/H8S/2100 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 12 Serial Communication Interface (SCI)
Bit
1
0
Legend:
X: Don’t care
Rev. 2.00 Mar 21, 2006 page 228 of 518
REJ09B0299-0200
Bit Name
CKE1
CKE0
Initial Value
0
0
R/W
R/W
R/W
Description
Clock Enable 1, 0
These bits select the clock source and SCK pin
function.
Asynchronous mode
00: Internal clock
(SCK pin functions as I/O port.)
01: Internal clock
(Outputs a clock of the same frequency as the bit
rate from the SCK pin.)
1X: External clock
(Inputs a clock with a frequency 16 times the bit rate
from the SCK pin.)
Clocked synchronous mode
0X: Internal clock (SCK pin functions as clock
output.)
1X: External clock (SCK pin functions as clock
input.)