D1M1A Mango Adapter Board Manual
【DRAFT VERSION - CONFIDENTIAL】
11
4.3 Function specification
Main oscillator
Terminals: X1/X2 clock selection
o Crystal (8MHz)
o Ceralock (8MHz)
o Direct clock input from external pulse generator
Table 4-1: Sub-Selection of external oscillator
External oscillator sub-selection
Use BNC connector (CN14).
Use crystal oscillator Y1
Table 4-2: Selection of crystal or external oscillator
External oscillator select
JP8/JP9 open
R44 soldered
JP9 1-2 closed
R44 unsoldered
JP8 JP9-1 closed
R44 unsoldered
Use external oscillator (JP6)
Sub oscillator
Terminals: XT1/XT2
o Crystal (32.768KHz)