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EP9312-CBZ

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P48P49-P51P52-P54P55-P57P58-P60P61-P62
40 Copyright 2010 Cirrus Logic (All Rights Reserved) DS515F2
EP9312
Universal Platform SOC Processor
Note: DD (15:0) and HSTROBE signals are shown at both the device and the host to emphasize that cable settling time as well as
cable propagation delay shall not allow the data signals to be considered stable at the device until some time after they are
driven by the host.
Figure 25. Sustained Ultra DMA data-out Burst
Note: 1. The device may negate DMARQ to request termination of the Ultra DMA burst no sooner than t
RP
after DDMARDYn is
negated.
2. If the t
SR
timing is not satisfied, the device may receive zero, one, or two more data words from the host.
Figure 26. Device Pausing an Ultra DMA data-out Burst
HSTROBE
(host)
DD (15:0)
(host)
HSTROBE
(device)
DD (15:0)
(device)
t
CYCWR
t
2CYCWR
t
2CYCWR
t
CYCWR
t
DVH
t
DVS
t
DVH
t
DVS
t
DVH
t
DH
t
DS
t
DS
t
DH
t
DH
DD (15:0)
(host)
HSTROBE
(host)
DDMARDYn
(device)
STOP
(host)
DMACKn
(host)
DMARQ
(device)
t
RP
t
SR
t
RFS
DS515F2 Copyright 2010 Cirrus Logic (All Rights Reserved) 41
EP9312
Universal Platform SOC Processor
Note: The definitions for the DIOWn:STOP, IORDY:DDMARDYn:DSTROBE and DIORn:HDMARDYn:HSTROBE signal lines are no
longer in effect after DMARQ and DMACKn are negated.
Figure 27. Host Terminating an Ultra DMA data-out Burst
DMARQ
(device)
DMACKn
(host)
STOP
(host)
DDMARDYn
(device)
HSTROBE
(host)
DD (15:0)
(host)
IDEDA[2:0]
IDECS0n,
IDECS1n
t
DVH
t
DVS
t
LI
t
LI
t
LI
t
MLI
t
SS
t
ACK
t
ACK
t
ACK
t
IORDYZ
CRC
42 Copyright 2010 Cirrus Logic (All Rights Reserved) DS515F2
EP9312
Universal Platform SOC Processor
Note: The definitions for the DIOWn:STOP, IORDY:DDMARDYn:DSTROBE and DIORn:HDMARDYn:HSTROBE signal lines are no
longer in effect after DMARQ and DMACKn are negated.
Figure 28. Device Terminating an Ultra DMA data-out Burst
DMARQ
(device)
DMACKn
(host)
STOP
(host)
DDMARDYn
(device)
HSTROBE
(host)
DD (15:0)
(host)
IDEDA[2:0]
IDECS0n,
IDECS1n
t
LI
t
LI
t
RP
t
RFS
t
MLI
t
ACK
t
ACK
t
ACK
t
DVH
t
DVS
t
MLI
t
IORDYZ
CRC
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42P43-P45P46-P48P49-P51P52-P54P55-P57P58-P60P61-P62

EP9312-CBZ

Mfr. #:
Buy EP9312-CBZ
Manufacturer:
Cirrus Logic
Description:
Microprocessors - MPU IC Universl Pltform ARM9 SOC Prcessor
Lifecycle:
New from this manufacturer.
Delivery:
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