MC68302EH16C Freescale Semiconductor, MC68302EH16C Datasheet - Page 233

IC MPU MULTI-PROTOCOL 132-PQFP

MC68302EH16C

Manufacturer Part Number
MC68302EH16C
Description
IC MPU MULTI-PROTOCOL 132-PQFP
Manufacturer
Freescale Semiconductor

Specifications of MC68302EH16C

Processor Type
M683xx 32-Bit
Speed
16MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
132-MQFP, 132-PQFP
Controller Family/series
68K
Core Size
32 Bit
Ram Memory Size
1152Byte
Cpu Speed
16MHz
No. Of Timers
3
Embedded Interface Type
SCP, TDM
Digital Ic Case Style
PQFP
Rohs Compliant
Yes
Family Name
M68000
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
16MHz
Instruction Set Architecture
RISC
Supply Voltage 1 (typ)
5V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
132
Package Type
PQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
RoHS Compliant part Electrostatic Device

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I—Interrupt
L—Last
TC—Tx CRC
When the last bit is not set but TC is set (e.g., in a header buffer), the DDCMP controller will
append the next buffer immediately following the CRC sequence. The preset value for the
CRC16 calculation is located in the PCRC register and should be initialized to all zeros or
all ones.
OL—Optional Last
Bits 8–2—Reserved for future use.
UN—Underrun
CT—CTS Lost
MOTOROLA
This bit allows the user to transmit abutted messages in DDCMP.
The following status bits are written by the DDCMP controller after it has finished trans-
mitting the associated data buffer.
The DDCMP controller encountered a transmitter underrun condition while transmitting
the associated data buffer.
CTS in NMSI mode or grant in IDL/GCI mode was lost during message transmission.
0 = No interrupt is generated after this buffer has been serviced.
1 = Either TX or TXE in the DDCMP event register will be set when this buffer has been
0 = This buffer is not the last in the message.
1 = The last bit is set by the processor to indicate that this buffer is the last buffer in the
0 = Do not transmit a CRC sequence after the buffer's last data byte.
1 = Transmit a CRC16 sequence after the buffer's last data byte.
0 = Normal operation. The SYNF bit in the DDCMP mode register determines the pat-
1 = Abutted messages. The CP checks the ready bit of the next Tx BD after processing
serviced by the DDCMP controller, which can cause interrupts.
current message.
tern transmitted between messages.
the current BD, and, if set, abuts the next message to the current message. If the
ready bit is not set, the SYNF bit determines the transmitted pattern.
The DDCMP controller checks the TC bit, not the last bit, to de-
termine whether to append the CRC sequence. The DDCMP
controller will transmit the programmable number of SYN1–
SYN2 pairs before transmitting the next buffer (message) when
the last bit is set.
This error can occur only on synchronous links.
MC68302 USER’S MANUAL
NOTE
NOTE
Communications Processor (CP)
4-113

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