![](http://datasheet.mmic.net.cn/330000/MB86831_datasheet_16436326/MB86831_68.png)
MB86830 Series
68
(5)Instruction Cache Data RAM (ICDATA)
ASI
=
0x0d
Capacity 16 KB
Bank 1:Address
=
0x00000000
H
to 0x00001ffc
H
(+4)
Bank 2:Address
=
0x80000000
H
to 0x80001ffc
H
(+4)
Capacity 8 KB
Bank 1:Address
=
0x00000000
H
to 0x00000ffc
H
(+4)
Bank 2:Address
=
0x80000000
H
to 0x80000ffc
H
(+4)
Capacity 4 KB
Bank 1:Address
=
0x00000000
H
to 0x000007fc
H
(+4)
Bank 2:Address
=
0x80000000
H
to 0x800007fc
H
(+4)
Capacity 2 KB
Bank 1:Address
=
0x00000000
H
to 0x000003fc
H
(+4)
Bank 2:Address
=
0x80000000
H
to 0x800003fc
H
(+4)
Capacity 1 KB
Bank 2:Address
=
0x80000000
H
to 0x800003fc
H
bit 31 to bit 0:Data (RST
=
X)
X:Don’t care
(6)Data Cache Tag (DCTAG)
ASI
=
0x0e
Capacity 16 KB
Bank 1:Address
=
0x00000000
H
to 0x00001fe0
H
(+32)
Bank 2:Address
=
0x80000000
H
to 0x80001fe0
H
(+32)
Capacity 8 KB
Bank 1:Address
=
0x00000000
H
to 0x00000fe0
H
(+32)
Bank 2:Address
=
0x80000000
H
to 0x80000fe0
H
(+32)
Capacity 4 KB
Bank 1:Address
=
0x00000000
H
to 0x000007e0
H
(+32)
Bank 2:Address
=
0x80000000
H
to 0x800007e0
H
(+32)
Capacity 2 KB
Bank 1:Address
=
0x00000000
H
to 0x000003f0
H
(+16)
Bank 2:Address
=
0x80000000
H
to 0x800003f0
H
(+16)
Capacity 1 KB
Bank 2:Address
=
0x80000000
H
to 0x800003f0
H
(+16)
13 12 11 10
9
bit 31 to bit 13 :Address Tag (RST
=
X)
bit 12
:Capacity 16 KB
=
<Reserved>, Other
=
<Address Tag>
bit 11
:Capacity 16 KB, 8 KB
=
<Reserved>, Other
=
<Address Tag>
bit 10
:Capacity 16 KB, 8 KB, 4 KB
=
<Sub Block Valid>(Valid
=
1, Invalid
=
0, RST
=
0)
Capacity 2 KB, 1 KB
=
<Address Tag>
bit 9 to bit 6
:Sub Block Valid (Valid
=
1, Invalid
=
0,RST
=
0)
bit 4 to bit 2
:Capacity 16 KB, 8 KB, 4 KB
=
<Sub Block Valid>(Valid
=
1, Invalid
=
0, RST
=
0)
Capacity 2 KB, 1 KB
=
<Reserved>[Don’t care for read]
bit 5
:User/Supervisor (User
=
1, Supervisor
=
0, RST
=
X)
bit 1
:Capacity 1 KB
=
<Reserved>, Other
=
LRU (RST
=
0) *
bit 0
:Entry Lock (Lock
=
1, Unlock
=
0, RST
=
0)
*:BANK 1 only, BANK 2 is Reserved
X:Don’t care
bit
→
31
0
Data
bit
→
31
6
5
4
2
1
0
Address Tag