MC68MH360EM25L Freescale Semiconductor, MC68MH360EM25L Datasheet - Page 928

• Manufacturer Part Number: MC68MH360EM25L
• Description: IC MPU QUICC ETHER 25MHZ 240FQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68MH360EM25L

• Processor Type: M683xx 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 240-FQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -

RISC Microcode from RAM
C.4 ASYNCHRONOUS HDLC FOR PPP
Asynchronous HDLC is a frame-based protocol (see Figure 3), defined by the Internet Engi-
neering Task Force (IETF) "Request For Comments #1549" which uses HDLC framing tech-
niques in conjunction with UART-type characters. This protocol is typically used as the
physical layer for the Point-to-Point (PPP) protocol. While this protocol can be implemented
by the UART controller on the QUICC in conjunction with the CPU32+, it is more efficient
and less compute-intensive for the CPU to allow the Communications Processor Module
(CPM) of the QUICC to perform the framing and transparency functions of the protocol.
C.4.1 Key Features
C-6
• Flexible data buffer structure which allows an entire frame or a section of a frame to be
• Separate interrupts for received frames and transmitted buffers.
• Automatic 16-bit CRC generation and checking (CRC-CCITT).
• Automatic generation of opening and closing flags.
1 x 10 Mbit/s non-scrambling
1 x 6 Mbit/s with scrambling
2 x 2 Mbit/s with scrambling
2 x 2 Mbit/s non-scrambling
transmitted and received.
ATOM1 Channels
Ethernet
Figure C-3. Asynchronous HDLC Block Diagram
MC68160
Interface
Interface
EEST
WAN
WAN
Freescale Semiconductor, Inc.
For More Information On This Product,
Consumed (est)
Risc Bandwidth
Table C-3. ATOM1 Configuration
90%
90%
40%
40%
MC68360 USER’S MANUAL
Go to: www.freescale.com
SCC3
SCC1
SCC2
MC68360
QUICC
3 x 64Kbit HDLC or Transparent
2 x 64Kbit HDLC or Transparent
2 x 2.5 Mbit HDLC or Transparent, 9.6 Kbit SMC UART
1 x 10 Mbit Ethernet, 9.6 Kbit SMC UART
SCC4
Possible Configuration of Other Channels
RS232
Driver
Asynchronous
HDLC
Modem
MOTOROLA