dsp56853 Freescale Semiconductor, Inc, dsp56853 Datasheet - Page 37

• Manufacturer Part Number: dsp56853
• Description: 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
Operating Conditions: V
Time to re-assert
1. After second write in 16-bit mode
2. After first write in 16-bit mode
1. The formulas: T = clock cycle. f ipb = 60MHz, T = 16.7ns.
or after write in 8-bit mode
Characteristic
Disable time
Disable time
Access time
Pulse width
Setup time
Setup time
Hold time
Hold time
HACK
HREQ
SS
HD
= V
Figure 4-17 Controller-to-Host DMA Read Mode
SSIO
= V
Table 4-9 Host Interface Port Timing
SSA
= 0 V, V
TREQACKL
DD
56853 Technical Data, Rev. 6
TACKREQL
Symbol
= 1.62-1.98V, V
TDACKS
TACKDH
TRADV
TRADX
TRADZ
TADSS
TDSAH
TWDS
TACKDV
TACKREQH
DDIO
4T + 5
= V
Min
—
5
3
3
1
3
1
5
5
DDA
= 3.0–3.6V, T
TACKDZ
TACKREQL
5T + 9
Max
13
—
—
—
—
—
—
—
13
A
= –40° to +120°C, C
1
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
L
≤ 50pF, f
See Figure
4-17,
4-18
4-19
4-18
4-19
4-18
4-19
4-20
4-20
4-21
4-22
4-21
4-22
4-21
4-22
4-20
Host Interface Port
op
= 120MHz
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