HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 125

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

DMA read cycle
T1
T2
T3
CLK
RD
RTS
(f) CPU Mode 0, DMA Read Cycle
DMA read cycle
T1
T2
T3
CLK
RD
RTS
(g) CPU Mode 1, DMA Read Cycle
DMA read cycle
T1
T2
T3
CLK
HDS, LDS
R/W
RTS
(h) CPU Mode 2 and 3, DMA Read Cycle
Figure 5.1 Modem Control Signal Timing (cont)
Rev. 0, 07/98, page 109 of 453