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Section 10 Serial Communication Interface
Rev. 6.00 Sep 12, 2006 page 282 of 526
REJ09B0326-0600
Bit 6
Extended Data Bit (SOL):
Bit 6 sets the SO
1
output level. When read, SOL returns the
output level at the SO
1
pin. After completion of a transmission, SO
1
continues to output the value
of the last bit of transmitted data. The SO
1
output can be changed by writing to SOL before or
after a transmission. The SOL bit setting remains valid only until the start of the next transmission.
SSB mode settings also become invalid. To control the level of the SO
1
pin after transmission
ends, it is necessary to write to the SOL bit at the end of each transmission. Do not write to this
register while transmission is in progress, because that may cause a malfunction.
Bit 6: SOL
Description
0 Read:
SO
1
pin output level is low
(initial value)
Write:
SO
1
pin output level changes to low
1 Read:
SO
1
pin output level is high
Write:
SO
1
pin output level changes to high
Bit 5
Overrun Error Flag (ORER):
When an external clock is used, bit 5 indicates the
occurrence of an overrun error. If noise occurs during a transfer, causing an extraneous pulse to be
superimposed on the normal serial clock, incorrect data may be transferred. If a clock pulse is
input after transfer completion, this bit is set to 1 indicating an overrun.
Bit 5: ORER
Description
0 Clearing
condition:
After reading ORER = 1, cleared by writing 0 to ORER
(initial value)
1 Setting
condition:
Set if a clock pulse is input after transfer is complete, when an external clock is
used
Bits 4 to 2
Reserved Bits:
Bits 4 to 2 are reserved. They are always read as 0, and cannot be
modified.
Bit 1
TAIL MARK Transmit Flag (MTRF):
When bit MRKON is set to 1, bit 1 indicates that
TAIL MARK is being sent. Bit 1 is a read-only bit and cannot be modified.
Bit 1: MTRF
Description
0
Idle state, or 8- or 16-bit data is being transferred
(initial value)
1
TAIL MARK is being sent
Summary of Contents for F-ZTAT H8/3642A Series
Page 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Page 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Page 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Page 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Page 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Page 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Page 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Page 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Page 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...