アプリケーション・ノート (15)
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Understanding SYSCLK Jitter[AN4056]
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PowerQUICC® Processor with CPM (2 SCC, 1 SMC), 10/100 Ethernet
The MPC853T is an "ethernet-only" member of the MPC866 Family. Like the MPC866, the MPC853T is a 0.18 micron version of the PowerQUICC® Family and can operate up to a maximum of 100 MHz on the MPC8xx Core with a maximum of 66 MHz external bus. The MPC853T has a 1.8 V core and has a 3.3 V I/O operation with 5 V TTL compatibilty. The MPC853T Integrated Communications Controller is a versatile one-chip integrated microprocessor and peripheral combination that can be used in a variety of controller applications. The MPC853T is ideal for voice-enabled systems (TDM-based) and ethernet to ethernet applications such as line cards.
The MPC853T is a Power Architecture-based derivative of NXP® Semiconductors's Quad Integrated Communications Controller (PowerQUICC).. The CPU on the MPC853T is the MPC8xx core, a 32-bit microprocessor built on Power Architecture technology, incorporating memory management units (MMUs) and instruction and data caches.
製品詳細
Features
- Maximum frequency operation of the external bus is 66 MHz in 1:1 mode
- Single-issue, 32-bit core (compatible with Power Architecture technology) with 32, 32-bit general-purpose registers (GPRs)
- Up to 32-bit data bus (dynamic bus sizing for 8, 16, and 32 bits)
- 32 address lines
- Memory controller (eight banks)
- General-purpose timers
- System integration unit (SIU)
- Interrupts
- Communications processor module (CPM)
- Two baud rate generators
- Two SCCs (serial communication controllers) (10BaseT Ethernet, HDLC, Transparent)
- One SMC (serial management channel)
- One SPI (serial peripheral interface)
- Fast Ethernet controller (FEC)
- Time-slot assigner (TSA)
- PCMCIA interface
- Debug interface
- 1.8 V Core and 3.3 V I/O operation with 5-V TTL compatibility
- 256-pin, 23*23 1.27 ball pitch (BGA) package
比較表
MPC866 Family Versions and Masks
| Qual | Process | Mask | IMMR [16:31] | |
|---|---|---|---|---|
| Rev 0.3 | MC | HiP6W | 3L90H | 0x0800 |
| Rev A.0 | MC | HiP6W | 0L96R | 0x0801 |
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