Datasheet

Section 22 Synchronous Serial Communication Unit (SSU)
Page 796 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)
SSI Bit 7 Bit 0 Bit 7 Bit 0 Bit 7 Bit 0
Bit 7 Bit 0 Bit 7 Bit 0 Bit 7 Bit 0
RDRF
RSSTP
LSI operation
User
processing
Dummy read on SSRDR Read data in SSRDR Read data in SSRDRSet RSSTP to 1
User
processing
Dummy read on SSRDR Read data in SSRDR Read data in SSRDRSet RSSTP to 1
RXI generated RXI generated RXI generated
LSI operation RXI generated RXI generated RXI generated
SSCK
(High
impedance)
SSI
RDRF
RSSTP
One frame One frame
One frame One frame
Figure 22.12 Example of Operation in Data Reception (MSS = 1)