MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 304

• 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

External Interface Module (EIM)
Table 17-2
17.3 Bus Characteristics
The MCF5271 uses its internal bus clock to generate CLKOUT (see
Therefore, the external bus operates at the same speed as the bus clock rate of f
operations are synchronous to the rising edge of CLKOUT, and some of the bus control signals
(BS, OE, and CSn) are synchronous to the falling edge, shown in
may differ somewhat for interfacing with external DRAM.
17-2
1
explains the transfer size encoding of the TSIZ[1:0] signals.
These signals change after the falling edge. In the Electrical Specifications, these signals are
specified off of the rising edge because CLKIN is squared up internally.
Signal Name
TSIZ[1:0]
R/W
TIP
TA
TS
Table 17-1. ColdFire Bus Signal Summary (Continued)
Read/write
Transfer size
Transfer acknowledge
Transfer in progress
Transfer start
Table 17-2. Transfer Size Encoding
TSIZ[1:0]
MCF5271 Reference Manual, Rev. 2
Description
00
01
10
11
Transfer Size
16-byte line
Longword
Word
Byte
I/O
O
O
O
O
I
Figure
Chapter 7, “Clock
Rising
Rising
Rising
Rising
Rising
CLKOUT Edge
17-1. Bus characteristics
Freescale Semiconductor
sys/2
, where all bus
Module”).