MCIMX25 Motorola Semiconductor Products, MCIMX25 Datasheet - Page 49

• Manufacturer Part Number: MCIMX25
• Manufacturer: Motorola Semiconductor Products

Figure 19
Timing parameters for UDMA out-bursts are listed in
Freescale Semiconductor
Parameter
t2cyc
ATA
tenv
tdvh
trfs1
tack
tdvs
tcyc
tcvh
tmli
tss
—
—
tli
tli
tli
shows timing for host-terminated UDMA out-transfer.
Parameter
tdzfs_mli
Spec
tdzfs
tack
tenv
tdvs
tdvh
tcvh
tcyc
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 2
trfs
ton
tss
tli1
tli2
tli3
toff
—
Figure 19. Timing for Host-Terminated UDMA Out-Transfer
DATA WRITE
tack(min.) = (time_ack
tenv(min.) = (time_env
tenv(max.) = (time_env
tdvs = (time_dvs
tdvs = (time_dvh
tcyc = time_cyc
t2cyc = time_cyc
trfs = 1.6
tdzfs = time_dzfs
tss = time_ss
tdzfs_mli =max.(time_dzfs, time_mli)
tli1 > 0
tli2 > 0
tli3 > 0
tcvh = (time_cvh
ton = time_on
toff = time_off
buffer_en
DMARQ
DMACK
Table 36. Timing Parameters UDMA Out-Bursts
DIOW
IORDY
ADDR
DIOR
T + tsui + tco + tbuf + tbuf
T – (tskew1 + tskew2)
T – tskew1
T – tskew1
T – (tskew1 + tskew2)
tss
T) – (tskew1 + tskew2)
T) – (tskew1 + tskew2)
T) – (tskew1 + tskew2)
2
T – (tskew1)
T
T) – (tskew1 + tskew2)
tcyc
T) – (tskew1 + tskew2)
T) + (tskew1 + tskew2)
tcyc1
Value
Table
tli3
tli2
T – (tskew1 + tskew2)
36.
tdzfs_mli
tack
tcvh
toff
How to Meet?
time_dzfs
time_ack
time_env
time_dvs
time_dvh
time_cvh
time_cyc
time_cyc
time_ss
—
—
—
—
—
—
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