NEC V850E/PH2 User Manual page 164

(3) Word access (32 bits)
(a) When the bus width is 32 bits (Little Endian)
<1> Access to address (4n)
31
24
23
16
15
8
7
0
Word data
<3> Access to address (4n+2)
1st access
Address
31 31
4n + 3
24
24
23
23
4n + 2
16
16
15 15
8 8
7 7
0 0
Word data External
data bus
164
Chapter 4 Bus Control Function (μPD70F3187 only)
Address
31
4n + 3
24
23
4n + 2
16
15
4n + 1
8
7
4n
0
External
data bus
2nd access
Address
31
31
24
24
23
23
16
16
15 15
4n + 5
8 8
7 7
4n + 4
0 0
Word data External
data bus
User's Manual U16580EE3V1UD00
<2> Access to address (4n+1)
1st access
Address
31
31
4n + 3
24
24
23
23
4n + 2
16
16
15 15
4n + 1
8 8
7 7
0 0
Word data External
data bus
<4> Access to address (4n+3)
1st access
Address
31
31
4n + 3
24
24
23
23
16
16
15 15
8 8
7 7
0 0
Word data External
data bus
2nd access
Address
31
31
24
24
23
23
16
16
15 15
8 8
7 7
4n + 4
0 0
Word data External
data bus
2nd access
Address
31
31
24
24
23
23
4n + 6
16
16
15 15
4n + 5
8 8
7 7
4n + 4
0 0
Word data External
data bus