Section 6
Bus Controller (BSC)
Rev.2.00 Jun. 28, 2007 Page 137 of 666
REJ09B0311-0200
Bit Bit
Name
Initial
Value R/W Description
7
6
5
4
3
2
1
0
IDLSEL7
IDLSEL6
IDLSEL5
IDLSEL4
IDLSEL3
IDLSEL2
IDLSEL1
IDLSEL0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Idle Cycle Number Select
Specifies the number of idle cycles to be inserted for
each area for the idle insertion condition specified by
IDLS1 and IDLS0.
0: Number of idle cycles to be inserted for area n is
specified by IDLCA1 and IDLCA0.
1: Number of idle cycles to be inserted for area n is
specified by IDLCB1 and IDLCB0.
(n = 7 to 0)
6.2.7
Bus Control Register 1 (BCR1)
BCR1 is used for selection of the external bus released state protocol, enabling/disabling of the
write data buffer function, and enabling/disabling of the
WAIT
pin input.
Bit
Bit Name
Initial Value
R/W
15
BRLE
0
R/W
14
BREQOE
0
R/W
13
0
R
12
0
R
11
0
R/W
10
0
R/W
9
WDBE
0
R/W
8
WAITE
0
R/W
Bit
Bit Name
Initial Value
R/W
7
0
R/W
6
0
R/W
5
0
R
4
0
R
3
0
R
2
0
R
1
0
R
0
0
R
Bit Bit
Name
Initial
Value R/W Description
15
BRLE
0
R/W
External Bus Release Enable
Enables/disables external bus release.
0: External bus release disabled
BREQ
,
BACK
, and
BREQO
pins can be used as I/O
ports
1: External bus release enabled
*
To set this bit to 1, the ICR bit of the corresponding pin
should be specified to 1. For details, see section 8, I/O
ports.
Содержание H8SX/1650
Страница 2: ...Rev 2 00 Jun 28 2007 Page ii of xxii...
Страница 106: ...Section 4 Exception Handling Rev 2 00 Jun 28 2007 Page 84 of 666 REJ09B0311 0200...
Страница 142: ...Section 5 Interrupt Controller Rev 2 00 Jun 28 2007 Page 120 of 666 REJ09B0311 0200...
Страница 326: ...Section 8 I O Ports Rev 2 00 Jun 28 2007 Page 304 of 666 REJ09B0311 0200...
Страница 470: ...Section 12 Watchdog Timer WDT Rev 2 00 Jun 28 2007 Page 448 of 666 REJ09B0311 0200...
Страница 546: ...Section 13 Serial Communication Interface SCI Rev 2 00 Jun 28 2007 Page 524 of 666 REJ09B0311 0200...
Страница 566: ...Section 14 A D Converter Rev 2 00 Jun 28 2007 Page 544 of 666 REJ09B0311 0200...
Страница 574: ...Section 16 RAM Rev 2 00 Jun 28 2007 Page 552 of 666 REJ09B0311 0200...
Страница 584: ...Section 17 Clock Pulse Generator Rev 2 00 Jun 28 2007 Page 562 of 666 REJ09B0311 0200...
Страница 638: ...Section 19 List of Registers Rev 2 00 Jun 28 2007 Page 616 of 666 REJ09B0311 0200...
Страница 668: ...Section 20 Electrical Characteristics Rev 2 00 Jun 28 2007 Page 646 of 666 REJ09B0311 0200...
Страница 676: ...Appendix Rev 2 00 Jun 28 2007 Page 654 of 666 REJ09B0311 0200...
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Страница 692: ...H8SX 1650 Group Hardware Manual...