Section 7 Data Transfer Controller (DTC)
Rev. 3.00 Jan 25, 2006 page 148 of 872
REJ09B0286-0300
Bit
Bit Name
Initial Value
R/W
Description
0
Sz
Undefined
—
DTC Data Transfer Size
Specifies the size of data to be transferred.
0: Byte-size transfer
1: Word-size transfer
Legend:
X: Don't care
7.2.2
DTC Mode Register B (MRB)
MRB selects the DTC operating mode.
Bit
Bit Name
Initial Value
R/W
Description
7
CHNE
Undefined
—
DTC Chain Transfer Enable
When this bit is set to 1, a chain transfer will be
performed. For details, see section 7.5.4, Chain
Transfer.
In data transfer with CHNE set to 1, determination of the
end of the specified number of data transfers, clearing
of the interrupt source flag, and clearing of DTCER are
not performed.
6
DISEL
Undefined
—
DTC Interrupt Select
When this bit is set to 1, a CPU interrupt request is
generated every time data transfer ends. When this bit
is cleared to 0, a CPU interrupt request is generated
only when the specified number of data transfer ends.
Note however that when the DTC is activated by a USB
or MCIF interrupt source and this bit is cleared to 0, this
LSI does not operate correctly. In such a case, be sure
to set this bit to 1.
5 to
0
—
Undefined
—
Reserved
These bits have no effect on DTC operation. The write
value should always be 0.
Содержание H8S/2158
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Страница 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Страница 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Страница 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Страница 744: ...Section 20 Encryption Operation Circuit DES and GF Rev 3 00 Jan 25 2006 page 690 of 872 REJ09B0286 0300...
Страница 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Страница 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Страница 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Страница 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Страница 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Страница 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Страница 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...