dsp56858 Freescale Semiconductor, Inc, dsp56858 Datasheet - Page 36

• Manufacturer Part Number: dsp56858
• Description: 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

4.8 Host Interface Port
36
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
Time to disassert
Characteristic
Disable time
Disable time
Disable time
Access time
Access time
Pulse width
Setup time
Setup time
Lead time
Hold time
Hold time
SS
= V
SSIO
= V
Table 4-9 Host Interface Port Timing
SSA
= 0 V, V
DD
56858 Technical Data, Rev. 6
= 1.62-1.98V, V
TACKREQH
TREQACKL
TACKREQL
Symbol
TACKDH
TACKDV
TACKDZ
TDACKS
TRADV
TRADX
TRADZ
TADSS
TDSAH
TWDS
DDIO
= V
4T + 5
Min
3.5
—
—
DDA
3
0
5
3
3
1
3
1
5
5
= 3.0–3.6V, T
5T + 9
Max
A
13
13
—
—
—
—
—
—
—
—
—
13
9
= –40° to +120°C, C
1
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Freescale Semiconductor
L
≤ 50pF, f
See Figure
4-17
4-17
4-17
4-20
4-17
4-20
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
4-19
4-20
op
= 120MHz