SH7708 Datasheet, PDF (241/625 Pages) Renesas Technology Corp – SuperH™ RISC engine

Table 10.88-Bit External Device/Big Endian Access and Data Alignment
Data Bus
Strobe Signal
Operation
D31– D23– D15–
D24 D16 D8 D7–D0
WE3 , WE2 , WE1 , WE0 ,
CASHH , CASHL , CASLH , CASLL,
DQMUU DQMUL DQMLU DQMLL
Address 0 byte
— — — Data 7–0 —
—
—
Asserted
access
Address 1 byte
— — — Data 7–0 —
—
—
Asserted
access
Address 2 byte
— — — Data 7–0 —
—
—
Asserted
access
Address 3 byte
— — — Data 7–0 —
—
—
Asserted
access
Address 0 1st time — — — Data
—
—
—
Asserted
word
(address
15–8
access 0)
2nd time — — — Data 7–0 —
—
—
Asserted
(address
1)
Address 2 1st time — — — Data
—
—
—
Asserted
word
(address
15–8
access 2)
2nd time — — — Data 7–0 —
—
—
Asserted
(address
3)
Address 0 1st time — — — Data
—
—
—
Asserted
longword (address
31–24
access 0)
2nd time — — — Data
—
—
—
Asserted
(address
23–16
1)
3rd time — — — Data
—
—
—
Asserted
(address
15–8
2)
4th time — — — Data 7–0 —
—
—
Asserted
(address
3)
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