MCF5272CVM66 Freescale Semiconductor, MCF5272CVM66 Datasheet - Page 249
MCF5272CVM66
Manufacturer Part Number
MCF5272CVM66
Description
IC MPU 66MHZ COLDFIRE 196-MAPBGA
Manufacturer
Freescale Semiconductor
Series
MCF527xr
Specifications of MCF5272CVM66
Core Processor
Coldfire V2
Core Size
32-Bit
Speed
66MHz
Connectivity
EBI/EMI, Ethernet, I²C, SPI, UART/USART, USB
Peripherals
DMA, WDT
Number Of I /o
32
Program Memory Size
16KB (4K x 32)
Program Memory Type
ROM
Ram Size
1K x 32
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
196-MAPBGA
Cpu Speed
66MHz
Embedded Interface Type
UART, QSPI, USB, TDM
Digital Ic Case Style
BGA
No. Of Pins
196
Supply Voltage Range
3V To 3.6V
Rohs Compliant
Yes
Family Name
MCF5xxx
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
66MHz
Instruction Set Architecture
RISC
Supply Voltage 1 (typ)
3.3V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
196
Package Type
MA-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Compliant
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11.5.20 Pointer-to-Transmit Descriptor Ring (ETDSR)
This register provides a pointer to the start of the circular transmit buffer descriptor queue in external
memory. This pointer must be long-word aligned. However, it is recommended it be aligned on a 16 byte
boundary (address evenly divisible by 16) in order to improve bus utilization. Bits 1 and 0 should be set
to 0 by the user. Non-zero values in these two bit positions are ignored by the hardware.
This register is not reset and must be initialized by the user prior to operation.
Freescale Semiconductor
31–2
Bits
1–0
Reset
Reset
Field
Field
Addr
R/W
R/W
31
15
X_DES_START
Name
—
MCF5272 ColdFire
Figure 11-25. Pointer-to-Transmit Descriptor Ring (ETDSR)
Reserved, should be cleared.
Pointer to start of transmit buffer descriptor queue.
Table 11-28. ETDSR Field Descriptions
®
Integrated Microprocessor User’s Manual, Rev. 3
X_DES_START
X_DES_START
MBAR + 0xC14
Read/Write
Read/Write
Undefined
Undefined
Description
2
0
Ethernet Module
1
16
0
0
11-31
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