r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 242
r8a77850anbg
Manufacturer Part Number
r8a77850anbg
Description
Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R8A77850ANBG.pdf
(1692 pages)
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8. Caches
This LSI has an IC way prediction scheme to reduce power consumption. In addition, memory-
mapped associative writing, which is detectable as an exception, can be enabled by using the non-
support detection exception register (EXPMASK). For details, see section 5, Exception Handling.
Rev.1.00 Jan. 10, 2008 Page 212 of 1658
REJ09B0261-0100
Virtual address
22
19
31
MMU
Figure 8.1 Configuration of Operand Cache (Cache size = 32 Kbytes)
Entry selection
8
255
0
19 bits
Comparison
(way 0 to way 3)
Tag
Address array
Hit signal
(Way 0 to way 3)
1 bit 1 bit
U
V
3
32 bits
LW0
12
32 bits
10
LW1
Read data
32 bits
LW2
[12:5]
(way 0 to way3)
32 bits
Data array
LW3
5 4
32 bits
LW4
Longword (LW) selection
2
32 bits
LW5
Write data
0
32 bits
LW6
32 bits
LW7
LRU
6 bits
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