Z8S180 Zilog., Z8S180 Datasheet - Page 216

• Manufacturer Part Number: Z8S180
• Description: ENHANCED Z180 MICROPROCESSOR
• Manufacturer: Zilog.

200
UM005001-ZMP0400
DREQ1
(l e v e l sens e )
DREQ1
(e dge s e ns e )
P H I
TENDi
ST
Not e s :
Z8018x Family
MPU User Manual
* * T
* T
D RQS
D RQS
and T
DMA Cycl e
St a r t s
and T
D RQH
Figure 84.
DRQH
are spe cif ied f or t h e rising e dge of t h e cl ock f ol l ow e d by T
are s pe cif ied f or t h e rising edge of t h e cl ock .
17
T
1
CPU or DMA Re ad/ W r it e Cycl e (O nl y DMA W r it e Cycl e f or TENDi)
DMA Control Signals
45 46
47
T
* *
2
45
T
W
46
*
T
3
3
.
48
St a r t s
CPU Cycl e
18
T
1