MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 295

• Manufacturer Part Number: MCF5270CAB100
• Description: MCU V2 COLDFIRE 64K SRAM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: MCF527xr

Specifications of MCF5270CAB100

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 100MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 160-QFP
• Processor Series: MCF527x
• Core: ColdFire V2
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

(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 MCF5271 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
MCF5271 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