Overview
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– One of the FCCs supports ATM (MPC8272 and MPC8271 only)—full-duplex SAR at 155
Mbps, 8-bit UTOPIA interface 31 Mphys, AAL5, AAL1, AAL2, AAL0 protocols, TM 4.0
CBR, VBR, UBR, ABR traffic types, up to 64-K external connections
Three serial communications controllers (SCCs) identical to those on the MPC860 supporting
the digital portions of the following protocols:
– Ethernet/IEEE 802.3 CDMA/CS
– HDLC/SDLC and HDLC bus
– Universal asynchronous receiver transmitter (UART)
– Synchronous UART
– Binary synchronous (BiSync) communications
– Transparent
– QUICC multichannel controller (QMC) up to 64 channels
• Independent transmit and receive routing, frame synchronization.
• Serial-multiplexed (full-duplex) input/output 2048, 1544, and 1536 Kbps PCM
highways
• Compatible with T1/DS1 24-channel and CEPT E1 32-channel PCM highway, ISDN
basic rate, ISDN primary rate, and user defined.
• Subchanneling on each time slot.
• Independent transmit and receive routing, frame synchronization and clocking
• Concatenation of any not necessarily consecutive time slots to channels independently
for receiver/transmitter
• Supports H1,H11, and H12 channels
• Allows dynamic allocation of channels
– SCC3 in NMSI mode is not usable when USB is enabled.
Two serial management controllers (SMCs), identical to those of the MPC860
– Provides management for BRI devices as general-circuit interface (GCI) controllers in
time-division-multiplexed (TDM) channels
– Transparent
– UART (low-speed operation)
One serial peripheral interface identical to the MPC860 SPI
One I
2
C controller (identical to the MPC860 I
2
C controller)
– Microwire compatible
– Multiple-master, single-master, and slave modes
Up to two TDM interfaces
– Supports one group
s
of two TDM channels
– 1024 bytes of SI RAM
Eight independent baud rate generators and 14 input clock pins for supplying clocks to FCC,
SCC, SMC, and USB serial channels
Four independent 16-bit timers that can be interconnected as two 32-bit timers
MPC8272 PowerQUICC II Family Hardware Specifications, Rev. 3
6
Freescale Semiconductor
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
