MCF5280CVM66 Freescale Semiconductor, MCF5280CVM66 Datasheet - Page 259

• Manufacturer Part Number: MCF5280CVM66
• Description: IC MPU 32BIT COLDF 256-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF528xr

Specifications of MCF5280CVM66

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 66MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, SPI, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 142
• Program Memory Type: ROMless
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-MAPBGA
• Controller Family/series: ColdFire
• No. Of I/o's: 150
• Program Memory Size: 2KB
• Ram Memory Size: 64KB
• Cpu Speed: 66.67MHz
• Embedded Interface Type: CAN, I2C, SPI, UART
• No. Of Pwm Channels: 8
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Signal Descriptions
14.2.1.1 Address Bus (A[23:0])
The 24 dedicated address signals, A[23:0], define the address of external byte, word, longword and
16-byte burst accesses. These three-state outputs are the 24 lsbs of the internal 32-bit address bus. The
address lines also serve as the SDRAM addressing, providing multiplexed row and column address
signals.
These pins are configured for GPIO ports F, G and H in single-chip mode. The A[23:21] pins can also be
configured for CS[6:4].
14.2.1.2 Data Bus (D[31:0])
These three-state bidirectional signals provide the general purpose data path between the MCU and all
other devices. Data is sampled by the processor on the rising CLKOUT edge. The data bus port width and
wait states are initially defined for the external boot chip select, CS0, by D[19:18] during chip
configuration at reset. The port width for each chip select and SDRAM bank is programmable. The data
bus uses a default configuration if none of the chip selects or SDRAM bank match the address decode. The
default configuration is a 32-bit port with external termination and burst-inhibited transfers. The data bus
can transfer byte, word, or longword data widths. All 32 data bus signals are driven during writes,
regardless of port width and operand size.
D[26:24, 21, 19:16] are used during chip configuration as inputs to configure the functions as described in
Chapter 27, “Chip Configuration Module
(CCM).”
These pins are configured as GPIO ports A, B, C and D in single-chip mode.
14.2.1.3 Byte Strobes (BS[3:0])
The byte strobes (BS[3:0]) define the byte lane of data on the data bus. During accesses, these outputs act
as the byte select signals that indicate valid data is to be latched or driven onto a byte lane when driven
low. For SRAM or Flash devices, the BS[3:0] outputs should be connected to individual byte strobe
signals. For SDRAM devices, the BS[3:0] should be connected to individual SDRAM DQM signals. Note
that most SDRAMs associate DQM3 with the MSB, in which case BS3 is connected to the SDRAM's
DQM3 input.
These pins can also be configured as GPIO PJ[7:4].
14.2.1.4 Output Enable (OE)
This output signal indicates when an external device can drive data during external read cycles.
This pin can also be configured as GPIO PE7.
14.2.1.5 Transfer Acknowledge (TA)
This signal indicates that the external data transfer is complete. During a read cycle, when the processor
recognizes TA, it latches the data and then terminates the bus cycle. During a write cycle, when the
processor recognizes TA, the bus cycle is terminated. If all bus cycles support fast termination, TA can be
tied low.
This pin can also be configured as GPIO PE6.
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
Freescale Semiconductor
14-19