Datasheet

Section 22 Synchronous Serial Communication Unit (SSU)
Page 794 of 982 REJ09B0465-0300 Rev. 3.00
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
SSCK
(1) When CPOS = 0 and CPHS = 0:
(2) When CPOS = 0 and CPHS = 1:
SCS
(output)
SCS
(output)
(High
impedance)
SSO Bit 7 Bit 6 Bit 0 Bit 7 Bit 6 Bit 0
Bit 7 Bit 6 Bit 0 Bit 7 Bit 6 Bit 0
TDRE
TEND
LSI operation
User
processing
Write data
in SSTDR
Write data
in SSTDR
User
processing
Write data
in SSTDR
Write data
in SSTDR
TXI generated TXI generated TEI generated
LSI operation TXI generated TXI generated TEI generated
SSCK
(High
impedance)
SSO
TDRE
TEND
One frame One frame
One frame One frame
Figure 22.11 Example of Operation in Data Transmission (MSS = 1)