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2: GP4020 Package and Electrical Connections
18 GP4020 GPS Baseband Processor Design Manual
iii) NICE = High and NTRST = Low:
Firefly MF1 System Test Control input signals are connected to pins 86, 87, 88, and 89 as follows:
Pin 86 = Xreq
Pin 87 = XWrite
Pin 88 = Xburst
Pin 89 = XCon
System test inputs are used in Firefly MF1 macrocell test mode for manufacturing test. Refer to Section
2.10 of Firefly MF1 Core Design Manual (DM5003), from Zarlink Semiconductor, for more information.