The MPC857DSL Integrated Communications Controller is a versatile one-chip integrated microprocesor and peripheral combination that can be used in a variety of controller applications. It particularly excels in CPE applications including DSL modems, IADs, and residential gateways.
The MPC857DSL is a Power Architecture-based derivative of Freescale Semiconductor's Quad Integrated Communications Controller (PowerQUICC). The embedded CPU on the MPC857DSL is the MPC8xx core, a 32-bit microprocessor built on Power Architecture technology, incorporating memory management units (MMUs) and instruction and data caches. The memory controller supports many memory types, including SDRAM. The CPM (Communications Processing Module) is optimized for CPE applications supporting simultaneous operation of Fast Ethernet (MII) and parallel ATM (UTOPIA), UTOPIA II Multi-PHY (up to 4 addresses), and many more features.
View Block DiagramFeatures
The following list summarizes the key MPC857DSL features:
- Embedded MPC8xx core
- Single-issue, 32-bit version of the core (compatible with Power Architecture technology) with 32, 32-bit general-purpose registers (GPRs)
- The MPC857DSL provides enhanced ATM functionality over that of the MPC860SAR.
The MPC857DSL adds major new features available in "enhanced SAR" (ESAR)
mode, including the following:
- Multiple APC priority levels available to support a range of traffic pace requirements
- Port-to-port switching capability without the need for RAM-based microcode
- Simultaneous MII (100Base-T) and UTOPIA (half-duplex) capability
- Parameter RAM for both SPI and I2C can be relocated without RAM-based microcode
- Supports full-duplex UTOPIA master (ATM side) operation using a "split" bus
- Up to 32-bit data bus (dynamic bus sizing for 8, 16, and 32 bits)
- UTOPIA port supports up to 4 PHY addresses
- Complete static design
- Memory controller (eight banks)
- General-purpose timers
- Fast Ethernet controller (FEC)
- System integration unit (SIU)
- Interrupts
- Communications processor module (CPM)
- Four baud rate generators
- One SCC (serial communication controller) for Ethernet (SCC1)
- One SMC (serial management channel) for UART (SMC1)
- One SPI (serial peripheral interface)
- One I2C (inter-integrated circuit) port
- Parallel interface port (PIP)
- One PCMCIA socket (Port B)
- Low power support
- Debug interface
- 3.3 V core, 3.3 V I/O
- 357-pin ball grid array (BGA) package
The 857DSL is rated as a commercial quality product. Please contact your Freescale Field Sales Representative or the Freescale factory for more details.
Product Specifications
| Core - Type | MPC8xx, MPC8xx |
| Core - Number of Cores - Spec | 1, 1 |
| Core - Operating Frequency - Typ (MHz) | 66, 50 |
| Co Processor Type | CPM |
| Co Processor Frequency - Max (MHz) | 66, 50 |
| Cache (kByte) | 4, 8 |
| I/O Operating Voltage - Max (V) | 3.3 |
| Bus Interface | PCMCIA, PowerPC ISA |
| Ambient Operating Temperature (Ta) - Max (°C) | 115, 105 |
| Ambient Operating Temperature (Ta) - Min (°C) | -40, 0 |
| Junction Operating Temperature - Max (°C)(Tj) | 105 |
| Power Dissipation - Max (W) | 1, 0.76 |
| Power Dissipation - Typ (W) | 0.89, 0.63 |
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