NNDK-MOD5272-KIT NetBurner Inc, NNDK-MOD5272-KIT Datasheet - Page 509

• Manufacturer Part Number: NNDK-MOD5272-KIT
• Description: KIT DEVELOP NETWORK FOR MOD5272
• Manufacturer: NetBurner Inc
• Series: ColdFire®r

Specifications of NNDK-MOD5272-KIT

• Main Purpose: *
• Embedded: *
• Utilized Ic / Part: MOD5272
• Primary Attributes: *
• Secondary Attributes: *
• Processor To Be Evaluated: MOD5272
• Interface Type: RS-232, RS-485, USB
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 528-1001

MOTOROLA
Figure 23-10 shows SDRAM self-refresh timings listed in Table 23-10.
23.6 Fast Ethernet AC Timing Specifications
MII signals use TTL signal levels compatible with devices operating at either 5.0 V or 3.3 V.
23.6.1 MII Receive Signal Timing (E_RxD[3:0], E_RxDV,
The receiver functions correctly up to a E_RxCLK maximum frequency of 25 MHz +1%.
There is no minimum frequency requirement. In addition, the processor clock frequency
must exceed twice the E_RxCLK frequency.
Table 23-11 lists MII receive channel timings.
Figure 23-11 shows MII receive signal timings listed in Table 23-11.
1
Num
E_RxDV, E_RxCLK, and E_RxD0 have same timing in 10 Mbit 7-wire interface mode.
M1
M2
M3
M4
SDCLK
SDWE
RAS0
CAS0
E_RxER, and E_RxCLK)
SD7
E_RxD[3:0], E_RxDV, Rx_ERR to E_RxCLK setup
E_RxCLK to E_RxD[3:0], E_RxDV, Rx_ERR hold
E_RxCLK pulse width high
E_RxCLK pulse width low
Figure 23-10. SDRAM Self-Refresh Cycle Timing
Table 23-11. MII Receive Signal Timing
Characteristic
Chapter 23. Electrical Characteristics
SD7
SD7
1
Fast Ethernet AC Timing Specifications
5
5
35%
35%
Min
—
—
65%
65%
Max
SD8
SD8
nS
nS
E_RxCLK period
E_RxCLK period
Unit
23-15