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AN2001 Datasheet(PDF) 3 Page - Motorola, Inc |
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AN2001 Datasheet(HTML) 3 Page - Motorola, Inc |
3 / 20 page ![]() Designing Expansion Boards for the Motorola MPC555EVB/ETAS ES2000 MOTOROLA Rev. 1, 31 July 2001 3 2.3 HCE Board Dimensions Figure 1 and Table 2 show the maximum board dimensions for boards designed to interface to the HCE connectors. Surface mount components should be used to keep the total height of the HCE board and connectors to 0.6875 inches (17.46 mm) to avoid interference with the optional ETAS ETK interface. Figure 1 HCE Board Layout 3 The Customized Communication Expansion Connectors (CCE) The customized communication expansion connectors on the EVB555 allows access to the MPC555 on-chip communication ports. The EVB555 provides for RS-232 drivers and DB9 connector for the SCI1 channel of the MPC555. The CCE allows for customized connections to all of the MPC555 QSMCM and TouCAN interfaces. There are two 20-pin connectors (CO104 – A and CO105 – B) part number Samtec TFM-110-12-S-D-P. The matching connector required on the expansion board is SFM-110-02-S-D-P. The pin-out of the CCE is shown in Table 3. NOTE The TXD1 and RXD1 are, by default, connected to the on board RS-232 driver. These can optionally be brought to the TXD_CCE (7) and RXD_CCE (8) pins of connector CO105 by changing the position of the 0 Ω resistors on BR100 and BR101 from position 1-2 to position 2-3. Table 2 HCE Board Dimensions Dimension Millimeters Inches L 45.72 1.800 S6.35 0.250 T 44.45 1.75 Host Communication Expansion L S T S Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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