Features
– CRC16 generation and checking
– CRC5 checking
– NRZI encoding/decoding with bit stuffing
– 12- or 1.5-Mbps data rate
– Flexible data buffers with multiple buffers per frame
– Automatic retransmission upon transmit error
— The USB host controller has the following features:
– Supports control, bulk, interrupt, and isochronous data transfers
– CRC16 generation and checking
– NRZI encoding/decoding with bit stuffing
– Supports both 12- and 1.5-Mbps data rates (automatic generation of preamble token and data
rate configuration). Note that low-speed operation requires an external hub.
– Flexible data buffers with multiple buffers per frame
– Supports local loopback mode for diagnostics (12 Mbps only)
Serial peripheral interface (SPI)
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— Supports master and slave modes
— Supports multiple-master operation on the same bus
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Inter-integrated circuit (I C) port
— Supports master and slave modes
— Supports a multiple-master environment
The MPC875 has a time-slot assigner (TSA) that supports one TDM bus (TDMb).
— Allows SCC and SMC to run in multiplexed and/or non-multiplexed operation
— Supports T1, CEPT, PCM highway, ISDN basic rate, ISDN primary rate, user defined
— 1- or 8-bit resolution
— Allows independent transmit and receive routing, frame synchronization, and clocking
— Allows dynamic changes
— Can be internally connected to two serial channels (one SCC and one SMC)
PCMCIA interface
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— Master (socket) interface, release 2.1-compliant
— Supports one independent PCMCIA socket on the MPC875/MPC870
— 8 memory or I/O windows supported
Debug interface
— Eight comparators: four operate on instruction address, two operate on data address, and two
operate on data
— Supports conditions: = ≠ < >
— Each watchpoint can generate a break point internally.
Normal high and normal low power modes to conserve power
1.8-V core and 3.3-V I/O operation with 5-V TTL compatibility
The MPC875/870 comes in a 256-pin ball grid array (PBGA) package.
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MPC875/MPC870 Hardware Specifications, Rev. 3.0
Freescale Semiconductor
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
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FREESCALE [ Freescale ]
