Section 17 Synchronous Serial Communication Unit (SSU)
Rev. 1.00 Mar. 12, 2008 Page 559 of 1178
REJ09B0403-0100
17.3.5
SS Status Register (SSSR)
SSSR is a status flag register for interrupts.
Bit Bit
Name
Initial
Value
R/W Description
7
0
Reserved
This bit is always read as 0. The initial value should not
be changed.
6 ORER
0 R/W
Overrun
Error
If the next data is received while RDRF
=
1, an overrun
error occurs, indicating abnormal termination. SSRDR
stores 1-frame receive data before an overrun error
occurs and loses data to be received later. While ORER
=
1, consecutive serial reception cannot be continued.
Serial transmission cannot be continued, either.
[Setting condition]
When one byte of the next reception is completed with
RDRF
=
1
[Clearing condition]
When writing 0 after reading ORER
=
1
5, 4
All
0
R/W
Reserved
These bits are always read as 0. The initial value
should not be changed.
3 TEND
1 R Transmit
End
[Setting condition]
•
When the last bit of transmit data is transmitted
while the TENDSTS bit in SSCR2 is cleared to 0
and the TDRE bit is set to 1
•
After the last bit of transmit data is transmitted while
the TENDSTS bit in SSCR2 is set to 1 and the
TDRE bit is set to 1
[Clearing conditions]
•
When writing 0 after reading TEND
=
1
•
When writing data to SSTDR
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...
Page 1226: ...Rev 1 00 Mar 12 2008 Page 1178 of 1178 REJ09B0403 0100...
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Page 1230: ...H8S 2472 Group H8S 2462 Group Hardware Manual...