Section 15 Serial Communication Interface with FIFO (SCIF)
Rev. 1.00 Mar. 12, 2008 Page 533 of 1178
REJ09B0403-0100
(3) Data
Transmission
Figure 15.8 shows an example of the data transmission flowchart.
Read CTS flag in FMSR
Read THRE flag in FLSR
i
←
0
i
←
i + 1
Write transmit data to transmit FIFO
CTS = 1
THRE = 1
Yes
No
No
No
No
Yes
Yes
(End of transmission or transmission standby)
Yes
Transmission/reception standby
[1]
[2]
[3]
[4]
[1] Confirm that the CTS flag in FMSR is 1.
[2] Confirm that the THRE flag in FLSR is 1 to
ensure that the transmit FIFO is empty.
[3] Write up to 16 bytes of transmit data in the
transmit FIFO. If the transmit data is 17 bytes
or more, return to step [2] to write transmit
data in the transmit FIFO again.
[4] When all of the data has been written, go
to the transmission/reception standby flow.
i < 16?
All data written
Figure 15.8 Example of Data Transmission Flowchart
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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