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TVME8240 User Manual Issue 1.2.9
Page 12 of 70
2.2.4 16550 compatible Dual UART
The TVME8240 uses the Exar XR16C2550 16550 compatible Dual UART with a 1.8432 MHz clock-
oscillator providing two asynchronous serial ports.
Please refer to the XR16C2550 manual for details.
2.2.5 Utility Registers
The TVME8240 provides some additional registers for board control and status functions.
Please refer to the address map section of this manual for details.
2.3 PCI Bus
The TVME8240 implements a 32 bit, 33 MHz PCI bus.
The TVME8240 implements the following devices on the PCI bus:
•
MPC8240 (PowerPC CPU, Local Memory Controller, Local PCI Bridge, PCI Arbiter, System Clock
Generation, Interrupt Controller)
•
Universe-II (VME PCI Bridge)
•
21143 (10/100Base-TX Ethernet LAN Controller)
•
PCI9030 (PCI Local Target Chip)
•
Optional PCI Devices on PCI Expansion Connector (e.g. TEWS TECHNOLOGIES’ TVME230 IP-
Span or Motorola PMC-Span)