SH7708 Datasheet, PDF (243/625 Pages) Renesas Technology Corp – SuperH™ RISC engine

Table 10.10 16-Bit External Device/Little Endian Access and Data Alignment
Data Bus
Strobe Signal
Operation
D31– D23–
WE3 , WE2 , WE1 , WE0 ,
CASHH , CASHL , CASLH , CASLL,
D24 D16 D15–D8D7–D0 DQMUU DQMUL DQMLU DQMLL
Address 0 byte
———
Data —
—
—
Asserted
access
7–0
Address 1 byte
— — Data —
—
—
Asserted —
access
7–0
Address 2 byte
———
Data —
—
—
Asserted
access
7–0
Address 3 byte
— — Data —
—
—
Asserted —
access
7–0
Address 0 word
— — Data Data —
—
Asserted Asserted
access
15–8 7–0
Address 2 word
— — Data Data —
—
Asserted Asserted
access
15–8 7–0
Address 0 1st time — — Data Data —
—
Asserted Asserted
longword (address
15–8 7–0
access 0)
2nd time — — Data Data —
—
Asserted Asserted
(address
31–24 23–16
2)
229