Rev. 5.0, 09/03, page x of xliv
Section
Page
Description
5.4.3 Examples of
Usage
115,
116
(1) Invalidating a Specific Entry
Description amended
A specific cache entry can be invalidated by accessing the allocated
memory cache and writing a 0 to the entry’s U and V bits. The A bit is
cleared to 0, and an address is specified for the entry address and the
way. If the U bit of the way of the entry in question was set to 1, the
entry is written back and the V and U bits specified by the write data are
written to.
In the following example, the write data is specified in R0 and the
address is specified in R1.
; R0 = H'0000 0000 LRU = H'000, U = 0, V = 0
; R1 = H'F000 1080, Way = 1, Entry = H'08, A = 0
;
MOV.L
R0, @R1
To invalidate all entries and ways, write 0 to the following addresses.
Addresses
F000 0000
F000 0010
F000 0020
:
F000 3FF0
This involves a total of 1,024 writes.
The above operation should be performed using a non-cacheable area.
(2) Invalidating a Specific Address
Newly added
(3) Reading Data from a Specific Entry
Description amended
; R0 = H'F100 004C; Data array access, Entry = H'04,
; Way = 0, Longword address = 3
;
MOV.L
R0, @R1
; Longword 3 is read.
6.2.6 Interrupt
Exception Handling and
Priority
Table 6.4 Interrupt
Exception Handling
Sources and Priority
(IRQ Mode)
127
IPR (bit numbers) for SCI amended
(Before)IPRB(3-0)
→
(After)IPRB
(7-4)
6.3.6 Interrupt
Request Register 0
(IRR0)
138
Description amended
When clearing an IRQ5R–IRQ0R bit to 0, read the bit while bit set
to 1, and then write 0. In this case, 0 should be written only to the
bits to be cleared and 1 to the other bits. The contents of the bits
to which 1 is written do not change.
8.2.1 Standby Control
Register (STBCR)
184
Description added
Bit 1—Module Standby 1 (MSTP1)
Before switching the RTC to module standby, access at least one
among the registers RTC, SCI, and TMU.
Содержание SH7709S
Страница 2: ......
Страница 44: ...Rev 5 00 09 03 page xliv of xliv ...
Страница 62: ...Rev 5 00 09 03 page 18 of 760 ...
Страница 128: ...Rev 5 00 09 03 page 84 of 760 ...
Страница 146: ...Rev 5 00 09 03 page 102 of 760 ...
Страница 224: ...Rev 5 00 09 03 page 180 of 760 ...
Страница 246: ...Rev 5 00 09 03 page 202 of 760 ...
Страница 266: ...Rev 5 00 09 03 page 222 of 760 ...
Страница 370: ...Rev 5 00 09 03 page 326 of 760 ...
Страница 432: ...Rev 5 00 09 03 page 388 of 760 ...
Страница 532: ...Rev 5 00 09 03 page 488 of 760 ...
Страница 598: ...Rev 5 00 09 03 page 554 of 760 ...
Страница 630: ...Rev 5 00 09 03 page 586 of 760 ...
Страница 656: ...Rev 5 00 09 03 page 612 of 760 ...
Страница 684: ...Rev 5 00 09 03 page 640 of 760 ...
Страница 700: ...Rev 5 00 09 03 page 656 of 760 ...
Страница 758: ...Rev 5 00 09 03 page 714 of 760 ...
Страница 807: ...SH7709S Group Hardware Manual REJ09B0081 0500O ADE 602 250C ...