MC68000 MOTOROLA [Motorola, Inc], MC68000 Datasheet - Page 299

• Manufacturer Part Number: MC68000
• Manufacturer: MOTOROLA [Motorola, Inc]

MOTOROLA
(OUTPUT)
(OUTPUT)
(OUTPUT)
(OUTPUT)
UDS–LDS
(OUTPUT)
(NOTE 3)
(NOTE 2)
NOTES:
D15–D0
DTACK
CLKO
RMC
1. For other timings than RMC, see Figures 6-2 and 6-3.
2. RMCST = 0 in the SCR.
3. RMCST = 1 in the SCR.
4. Wait states may be inserted between S4 and S5 during the write cycle and between S16 and S17 during the read cycle.
5. Read-modify-write cycle is generated only by the TAS instruction.
R/W
AS
AS
S0
9
S1
Figure 6-4. Read-Modify-Write Cycle Timing Diagram
18
S2
S3
62
S4
27
S5
12
MC68302 USER’S MANUAL
S6
DATA IN
S7
S8
INDIVISIBLE CYCLE
S9
29
S10 S11
S12
9
20
S13 S14 S15 S16 S17 S18
23
Electrical Characteristics
DATA OUT
12
9
25
18
63
S19
6-11