Datasheet

Section 20 Synchronous Serial Communication Unit (SSU)
R01UH0309EJ0500 Rev. 5.00 Page 1129 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
Bit
0
to to to to
to to to to
Bit
0
Bit
7
Bit
7
Bit
0
Bit
7
Bit
0
Bit
7
Bit
0
Bit
7
Bit
0
Bit
7
Bit
0
Bit
7
Bit
0
Bit
7
LSI operation
User operation
SSI
(LSB first)
SSI
(MSB first)
SCS
SSCK
RDRF
SSRDR0
SSRDR3
SSRDR1
SSRDR2
SSRDR2
SSRDR1
SSRDR3
SSRDR0
1 frame
Dummy-read SSRDR0, SSRDR1,
SSRDR2 and SSRDR3
RXI interrupt
generated
Figure 20.7 Example of Reception Operation (SSU Mode)
When 32-bit data length is selected (SSRDR0, SSRDR1, SSRDR2 and SSRDR3 are valid)
with CPOS = 0 and CPHS = 0 (4)