
CM‐BF537E‐HardwareUserManual 2
Table of Contents
1 Introduction ..................................................................................................................................................................................7
1.1 Overview...............................................................................................................................................................................7
1.2 Key Features ........................................................................................................................................................................8
1.3 Target Applications...........................................................................................................................................................8
2 Specification..................................................................................................................................................................................9
2.1 Functional Specification..................................................................................................................................................9
2.2 Boot Mode............................................................................................................................................................................9
2.3 Memory MAP.................................................................................................................................................................... 10
2.4 Electrical Specification .................................................................................................................................................. 10
2.4.1 Supply Voltage ....................................................................................................................................................... 10
2.4.2 Supply Voltage Ripple ......................................................................................................................................... 10
2.4.3 Input Clock Frequency......................................................................................................................................... 10
2.4.4 Real Time Clock Crystal........................................................................................................................................ 10
2.4.5 Supply Current ....................................................................................................................................................... 10
2.5 Environmental Specification....................................................................................................................................... 10
2.5.1 Temperature ........................................................................................................................................................... 10
2.5.2 Humidity................................................................................................................................................................... 10
3 CM-BF537E (Connector Version)......................................................................................................................................... 11
3.1 Mechanical Outline ........................................................................................................................................................ 11
3.2 Footprint - Connector Version.................................................................................................................................... 11
3.3 Mount Options................................................................................................................................................................. 13
3.4 Schematic Symbol (Signals of X1 and X2) .............................................................................................................. 14
4 Connectors Pin Assignment ................................................................................................................................................. 15
4.1 Connector X1 – (1-60).................................................................................................................................................... 15
4.2 Connector X2 – (61-120)............................................................................................................................................... 17
4.3 Pin out Description......................................................................................................................................................... 18
4.4 Reset circuit....................................................................................................................................................................... 19
4.5 RJ45 schematic ................................................................................................................................................................ 19
5 Test Points.......................................................................................................................... Error! Bookmark not defined.
5.1 Footprint – Test Points......................................................................................... Error! Bookmark not defined.
6 Software Support ..................................................................................................................................................................... 20
6.1 BLACKSheep ..................................................................................................................................................................... 20
6.2 uClinux................................................................................................................................................................................ 20
7 Application Examples ............................................................................................................................................................. 21
7.1 Sample Schematic .......................................................................................................................................................... 21