MCF5253CVM140 Freescale Semiconductor, MCF5253CVM140 Datasheet - Page 208

• Manufacturer Part Number: MCF5253CVM140
• Description: IC MPU 32BIT 140MHZ 225-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF525xr

Specifications of MCF5253CVM140

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 140MHz
• Connectivity: CAN, EBI/EMI, I²C, QSPI, UART/USART, USB OTG
• Peripherals: DMA, WDT
• Program Memory Type: ROMless
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 1.08 V ~ 1.32 V
• Data Converters: A/D 6x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 225-MAPBGA
• Family Name: MCF5xxx
• Device Core: ColdFire V2
• Device Core Size: 32b
• Frequency (max): 140MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 1.2/3.3V
• Operating Supply Voltage (max): 1.32/3.6V
• Operating Supply Voltage (min): 1.08/3V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 225
• Package Type: MA-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Compliant

IDE and Flash Media Interface
13.3.1
13-10
Symbol
Timing
ATA
t5a
tR
t1
t2
tA
t9
enb1, bufenb2
Value
ATA4
25
70
50
35
10
DIOR, DIOW
Read data
Write data
0
IDE Timing Diagram
BUFENB1
BUFENB2
BCLK
Address
IORDY
Controlled by Setting
TA
WAITCOUNT2
WAITCOUNT2
WAITCOUNT2
CS2POST
CS2PRE
–
tbuf
(WAITCOUNT2 + 3.5)T > t5a +
cs2pre
MCF5253 Reference Manual, Rev. 1
Equation (Approximately)
Table 13-7. IDE Timing Values
(WAITCOUNT2 + 1.5)T >
(WAITCOUNT2+ 4)T > t2
t1
3T > tbuf + tdel - tR
CS2PRE > t1 - tbuf
Figure 13-7. IDE Timing
CS2POST > t9
tio + tbuf
tA + tio
t5a
tA
(waitCount2 + 3.5)T
tbuf is external buffer enable time.
cs2pre must be set high enough to provide
sufficient address-to-DIOR, DIOW setup time.
Typical cs2pre values will range from 3 to 5 SCLK
clocks.
t2 is the DIOR, DIOW low period. To meet 70 nS t2
period, waitCount2 must be set to 3.
tio = Input/output delay of device. Typ. 10 nS
tbuf = External buffer delay. Typ. 15 nS
To meet this timing, waitCount2 must be set to 4-5
To meet this timing, waitCount2 must be set 3-4.
tdel = time difference between path from IORDY
and from read data
Read data in device must be valid 3 clocks after
IORDY going high.
To meet this timing, typical value for cs2post is 10
nS.
tR
t2
t5
Comment
data in
time
Freescale Semiconductor
t9