Section 17 Synchronous Serial Communication Unit (SSU)
Rev. 1.00 Mar. 12, 2008 Page 573 of 1178
REJ09B0403-0100
SCS
SSCK
(1) When 8-bit data length is selected (SSRDR0 is valid) with CPOS = 0 and CPHS = 0
(2) When 16-bit data length is selected (SSRDR0 and SSRDR1 are valid) with CPOS = 0 and CPHS = 0
(3) When 32-bit data length is selected (SSRDR0, SSRDR1, SSRDR2, and SSRDR3 are valid)
with CPOS = 0 and CPHS = 0
SSI
RDRF
SSRDR1
SCS
SSCK
RDRF
SSRDR0
SSRDR0
SSRDR1
SCS
SSCK
RDRF
SSRDR0
SSRDR3
SSRDR1
SSRDR2
SSRDR2
SSRDR1
SSRDR3
SSRDR0
1 frame
1 frame
1 frame
Bit
0
Bit
0
Bit
1
Bit
1
Bit
2
Bit
2
Bit
3
Bit
3
Bit
4
Bit
4
Bit
5
Bit
5
Bit
6
Bit
6
Bit
7
Bit
7
LSI operation
Dummy-read SSRDR0
Dummy-read SSRDR0 and SSRDR1
Read SSRDR0
User operation
LSI operation
User operation
LSI operation
User operation
SSTDR0 (LSB first transmission)
SSTDR0 (MSB first transmission)
RXI interrupt
generated
RXI interrupt generated
RXI interrupt
generated
Bit
0
Bit
1
Bit
2
Bit
3
Bit
4
Bit
5
Bit
6
Bit
7
Bit
0
Bit
1
Bit
2
Bit
3
Bit
4
Bit
5
Bit
6
Bit
7
Bit
0
Bit
1
Bit
2
Bit
3
Bit
4
Bit
5
Bit
6
Bit
7
Bit
0
Bit
1
Bit
2
Bit
3
Bit
4
Bit
5
Bit
6
Bit
7
SSI
(LSB first)
SSI
(MSB first)
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
SSI
(LSB first)
SSI
(MSB first)
Dummy-read SSRDR0
RXI interrupt generated
Figure 17.7 Example of Reception Operation (SSU Mode)
Summary of Contents for H8S Family
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Page 70: ...Section 1 Overview Rev 1 00 Mar 12 2008 Page 22 of 1178 REJ09B0403 0100...
Page 108: ...Section 2 CPU Rev 1 00 Mar 12 2008 Page 60 of 1178 REJ09B0403 0100...
Page 116: ...Section 3 MCU Operating Modes Rev 1 00 Mar 12 2008 Page 68 of 1178 REJ09B0403 0100...
Page 152: ...Section 5 Interrupt Controller Rev 1 00 Mar 12 2008 Page 104 of 1178 REJ09B0403 0100...
Page 206: ...Section 6 Bus Controller BSC Rev 1 00 Mar 12 2008 Page 158 of 1178 REJ09B0403 0100...
Page 420: ...Section 9 14 Bit PWM Timer PWMX Rev 1 00 Mar 12 2008 Page 372 of 1178 REJ09B0403 0100...
Page 476: ...Section 12 Watchdog Timer WDT Rev 1 00 Mar 12 2008 Page 428 of 1178 REJ09B0403 0100...
Page 552: ...Section 14 CRC Operation Circuit CRC Rev 1 00 Mar 12 2008 Page 504 of 1178 REJ09B0403 0100...
Page 712: ...Section 18 I2 C Bus Interface IIC Rev 1 00 Mar 12 2008 Page 664 of 1178 REJ09B0403 0100...
Page 804: ...Section 19 LPC Interface LPC Rev 1 00 Mar 12 2008 Page 756 of 1178 REJ09B0403 0100...
Page 838: ...Section 20 Ethernet Controller EtherC Rev 1 00 Mar 12 2008 Page 790 of 1178 REJ09B0403 0100...
Page 964: ...Section 24 RAM Rev 1 00 Mar 12 2008 Page 916 of 1178 REJ09B0403 0100...
Page 1066: ...Section 25 Flash Memory Rev 1 00 Mar 12 2008 Page 1018 of 1178 REJ09B0403 0100...
Page 1098: ...Section 26 Boundary Scan JTAG Rev 1 00 Mar 12 2008 Page 1050 of 1178 REJ09B0403 0100...
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Page 1230: ...H8S 2472 Group H8S 2462 Group Hardware Manual...