HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 94

• Manufacturer Part Number: HD64570
• Description: Serial Communications Adaptor
• Manufacturer: HITACHI [Hitachi Semiconductor]

Rev. 0, 07/98, page 78 of 453
CLK
BHE
A to A
AS (ME)
WAIT
RD
WR
D to D
(Out)
D to D
(In)
0
0
0
CLK
BHE
A to A
AS (ME)
WAIT
RD
WR
D to D
(Out)
D to D
(In)
0
0
0
Figure 3.15 Master Mode Bus Timing Sequence in CPU Mode 0
23
15
15
23
15
15
T
1
DMA read cycle
T
DMA read cycle
1
Memory address
Memory address
T
2
T
2
Data
latch point
T
W
With T
Data
latch point
No T
T
3
T
W
3
W
Transmit data
states
states
T
DMA write cycle
Transmit data
1
Memory address
T
DMA write cycle
1
Receive data
T
2
Memory address
T
Receive data
2
T
3
T
W
T
3