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XPC850ZT50BU Datasheet, PDF (5/76 Pages) Motorola, Inc – Communications Controller Hardware Specifications | |||
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â Selectable write protection
â On-chip bus arbiter supports one external bus master
â Special features for burst mode support
⢠General-purpose timers
â Four 16-bit timers or two 32-bit timers
â Gate mode can enable/disable counting
â Interrupt can be masked on reference match and event capture
⢠Interrupts
â Eight external interrupt request (IRQ) lines
â Twelve port pins with interrupt capability
â Fifteen internal interrupt sources
â Programmable priority among SCCs and USB
â Programmable highest-priority request
⢠Single socket PCMCIA-ATA interface
â Master (socket) interface, release 2.1 compliant
â Single PCMCIA socket
â Supports eight memory or I/O windows
⢠Communications processor module (CPM)
â 32-bit, Harvard architecture, scalar RISC communications processor (CP)
â Protocol-speciï¬c command sets (for example, GRACEFUL STOP TRANSMIT stops
transmission after the current frame is ï¬nished or immediately if no frame is
being sent and CLOSE RXBD closes the receive buffer descriptor)
â Supports continuous mode transmission and reception on all serial channels
â Up to 8 Kbytes of dual-port RAM
â Twenty serial DMA (SDMA) channels for the serial controllers, including eight
for the four USB endpoints
â Three parallel I/O registers with open-drain capability
⢠Four independent baud-rate generators (BRGs)
â Can be connected to any SCC, SMC, or USB
â Allow changes during operation
â Autobaud support option
⢠Two SCCs (serial communications controllers)
â Ethernet/IEEE 802.3, supporting full 10-Mbps operation
â HDLC/SDLC⢠(all channels supported at 2 Mbps)
â HDLC bus (implements an HDLC-based local area network (LAN))
MOTOROLA
MPC850 (Rev. A/B/C) Hardware Speciï¬cations
5
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