Hitachi SH7095 Hardware User Manual page 525

BSC
Bus control register 2 (BCR2)
Item 15 14
Bit Name
– –
Initial Value 0 0
R/W R R
Bit Bit Name
7, 6 Bus size specification of
area 3 (A3SZ1-
A3SZ0)(Effective only
when setting ordinary
space)
5, 4 Bus size specification of
area 2 (A2SZ1-
A2SZ0)(Effective only
when setting ordinary
space)
3, 2 Bus size specification of
area 1 (A1SZ1-A1SZ0)
Wait control register (WCR)
Item 15 14
Bit Name IW31 IW30 IW21 IW20 IW11 IW10 IW01 IW00 W31 W30 W21 W20 W11 W10 W01 W00
Initial Value 1 0
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Bit Bit Name
15 to 8 Idles between cycles for
areas 3 to 0
514 Hitachi
H'FFFFFFE4
13 12 11 10
– – – –
0 0 0 0
R R R R
Value
0 0 Reserved (do not set)
0 1 Byte (8 bits) size
1 0 Word (16 bits) size
1 1 Longword (32 bits) size (initial value)
0 0 Reserved (do not set)
0 1 Byte (8 bits) size
1 0 Word (16 bits) size
1 1 Longword (32 bits) size (initial value)
0 0 Reserved (do not set)
0 1 Byte (8 bits) size
1 0 Word (16 bits) size
1 1 Longword (32 bits) size (initial value)
H'FFFFFFE8
13 12 11 10
1 0 1 0
Value
IW31 IW30
IW21 IW20
IW11 IW10
IW01 IW00
0 0 No idle cycle
0 1 Inserts one idle cycle
1 0 Inserts two idle cycles (initial value)
1 1 Reserved (do not set)
16/32
Bit
9 8 7 6
A3 A3
– – SZ1 SZ0 SZ1 SZ0 SZ1 SZ0
0 0 1 1
R R R/W R/W R/W R/W R/W R/W
Description
16/32
Bit
9 8 7 6
1 0 1 1
Description
5 4 3 2
A2 A2 A1 A1
1 1 1 1
5 4 3 2
1 1 1 1
1 0
– –
0 0
R R
1 0
1 1