MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 315

• Manufacturer Part Number: MOD5234-100IR
• Description: MOD5234 10/100 ETHERNET MODULE
• Manufacturer: NetBurner Inc
• Type: Controllers & Processorsr

Specifications of MOD5234-100IR

• Interface: I²C, SPI, UART
• Voltage - Supply: 2.5V
• Mounting Type: Surface Mount
• Package / Case: Module
• Product: Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -
• Baud Rates: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4483564

(CSCRn) are defined as the secondary read wait state (SRWS) value and the secondary write wait
state (SWWS) value. The application of the secondary wait state values is only enabled when the
auto-acknowledge feature is enabled, i.e., CSCRn[AA] = 1.
High-performance memory devices typically require a x-y-y-y response where x is the initial
wait-state value and y is the secondary wait-state value. For non-SDRAM memory devices likely
to be connected to a MCF5235 device, memory response times of {5-9}-{1-2}-{1-2}-{1-2} are
typical. This function is supported with the secondary wait state counters.
Freescale Semiconductor
CSn, OE, BSn
CSn, OE, BSn
TSIZ[1:0]
TSIZ[1:0]
CLKOUT
CLKOUT
R/W, TIP
R/W, TIP
A[23:0]
D[31:0]
A[23:0]
D[31:0]
TS
TS
TA
TA
S0 S1 S2 S3
S0 S1 S2 S3
Figure 16-2. Secondary Wait State Writes
Figure 16-3. Secondary Wait State Reads
Write
Write
MCF5235 Reference Manual, Rev. 2
WS
WS
S4 S5
S4 S5
Write
Write
WS
WS
S6
S6
S7
S7
Write
Write
WS
WS
S8
S8
S9
S9
Write
Write
WS
WS
Chip Select Operation
S10
S10
S11
S11
16-5