MC68302EH16C Freescale Semiconductor, MC68302EH16C Datasheet - Page 187
MC68302EH16C
Manufacturer Part Number
MC68302EH16C
Description
IC MPU MULTI-PROTOCOL 132-PQFP
Manufacturer
Freescale Semiconductor
Datasheets
1.MC68302AG20C.pdf
(4 pages)
2.MC68302AG20C.pdf
(2 pages)
3.MC68302AG20C.pdf
(13 pages)
4.MC68302EH16C.pdf
(481 pages)
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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- MC68302AG20C PDF datasheet
- MC68302AG20C PDF datasheet #2
- MC68302AG20C PDF datasheet #3
- MC68302EH16C PDF datasheet #4
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- Download datasheet (2Mb)
The 8- or 16-bit control field provides a flow control number and defines the frame type (con-
trol or data). The exact use and structure of this field depends upon the protocol using the
frame.
Data is transmitted in the data field, which can vary in length depending upon the protocol
using the frame. Layer 3 frames are carried in the data field.
Error control is implemented by appending a cyclic redundancy check (CRC) to the frame,
which is 16-bits long in most protocols, but may be 32-bits long in some.
When the MODE1–MODE0 bits of an SCC mode register (SCM) select the HDLC mode,
then that SCC functions as an HDLC controller. The HDLC controller handles the basic func-
tions of the HDLC/SDLC protocol on either the D channel, a B channel, or from a multiplexed
serial interface (IDL, GCI (IOM-2), or PCM highway). When the HDLC controller is used to
support the B or D channel of the ISDN, the SCC outputs are internally connected to the
physical layer serial interface.
When an SCC in HDLC mode is used with a nonmultiplexed modem interface, then the SCC
outputs are connected directly to the external pins. In this case, the serial interface uses sev-
en dedicated pins: transmit data (TXD), receive data (RXD), receive clock (RCLK), transmit
clock (TCLK), carrier detect (CD), clear to send (CTS), and request to send (RTS). Other
modem signals may be supported through the parallel I/O pins.
The HDLC controller consists of separate transmit and receive sections whose operations
are asynchronous with the M68000 core and may be either synchronous or asynchronous
with respect to the other SCCs. Up to eight frames may be transmitted or received without
M68000 core intervention. When the HDLC controller is connected to one of the multiplexed
physical interface options (IDL, GCI, or PCM highway), the receive and transmit clocks are
identical and are supplied externally by the physical layer. In non-ISDN applications, each
clock can be supplied either from the baud rate generator or externally. The baud rate gen-
erator is discussed more fully in 4.5.2 SCC Configuration Register (SCON).
The HDLC controller key features are as follows:
MOTOROLA
• Flexible Data Buffers with Multiple Buffers per Frame Allowed
• Separate Interrupts for Frames and Buffers (Receive and Transmit)
• Four Address Comparison Registers with Mask
• Maintenance of Five 16-Bit Error Counters
• Flag/Abort/Idle Generation/Detection
• Zero Insertion/Deletion
• NRZ/NRZI Data Encoding
• 16-Bit or 32-Bit CRC-CCITT Generation/Checking
SDLC is fully supported, but the SDLC loop mode (ring configu-
ration) is not supported.
MC68302 USER’S MANUAL
NOTE
Communications Processor (CP)
4-67
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