MSC7115 Motorola Semiconductor Products, MSC7115 Datasheet - Page 26

• Manufacturer Part Number: MSC7115
• Manufacturer: Motorola Semiconductor Products

Specifications
Figure 6 shows the DDR DRAM output timing diagram.
Figure 7 provides the AC test load for the DDR DRAM bus.
2.5.5
26
V
V
Notes:
TH
OUT
No.
300
301
302
303
304
305
306
1
2
1.
2.
TDMxRCK/TDMxTCK
TDMxRCK/TDMxTCK High Pulse Width
TDMxRCK/TDMxTCK Low Pulse Width
TDM all input Setup time
TDMxRD Hold time
TDMxTFS/TDMxRFS input Hold time
TDMxTCK High to TDMxTD output active
DQMn
DQSn
TDM Timing
RAS
CAS
CKE
Data input threshold measurement point.
Data output measurement point.
WE
CK
CK
An
Dn
MSC7115 Low-Cost 16-bit DSP with DDR Controller Data Sheet, Rev. 11
Output
Characteristic
204
206
Write A0
Table 20. DDR DRAM Measurement Conditions
Figure 6. DDR DRAM Output Timing Diagram
207
205
Symbol
209
Figure 7. DDR DRAM AC Test Load
200
210
211
NOOP
Z
0
Table 21. TDM Timing
D0
= 50 Ω
D1
208
209
210
Expression
0.4 × TC
0.4 × TC
TC
R
L
= 50 Ω
Min
20.0
V
8.0
8.0
3.0
3.5
2.0
4.0
OUT
212
V
DDR DRAM
REF
0.5 × V
Freescale Semiconductor
± 0.31 V
Max
DDM
—
—
—
—
—
—
—
Units
ns
ns
ns
ns
ns
ns
ns
Unit
V
V