Z16M1720ASG1868 Zilog, Z16M1720ASG1868 Datasheet - Page 161

• Manufacturer Part Number: Z16M1720ASG1868
• Description: IC PCMCIA INTERFACE 100-VQFP
• Manufacturer: Zilog

Specifications of Z16M1720ASG1868

• Applications: *
• Interface: *
• Voltage - Supply: *
• Package / Case: 100-LQFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

UM008101-0601
Using The Z80 DMA With Other Processors
Figure 55.
The Z80 DMA offers great versatility and is a powerful alternative for
board designers. Because the DMA is designed as a member of the Z80
Family, it requires certain signals and bus characteristics, such as those of
ZC/TO1
ZC/TO2
TxCB
RxCA
TxCA
RxCB
CTC
W/RDYB
W/RDYA
CPU
DMA-SIO Environment
SIO
+5V
IEO
IEI
INT
INT
+5V
System
Buses
RDY
INT
INT
IEI
RDY
DMA
Common: A16–A0
DMA
IEO
IEI
<   % 2 7 2 G T K R J G T C N U
D7–D0
CLK
INT
BUSREQ
M1
IORQ
MREQ
RD
WR
Direct Memory Access
7 U G T / C P W C N