Blue Technix CM-BF527, Hardware User Manual, Page: 12 / 27

Blackfin CM-BF527 Hardware User Manual 11
Please do not use the PH9 and PG11 pins as IO flags. You should leave these Pins disconnected! If one or
both IO pins are needed and 4MB or 2 MB flash memory is sufficient for your application, remove the 0Ω
resistors R26 and R19 from your Core Module. The flash address lines A20 and A21 are pulled Low.
To access more than 8MB flash memory (64MB) you can add the 0Ω resistor array R2. But be aware to
not connect the IO pins PG10, PG9 and PG1.
Flash Address Pin Blackfin Flag CM Pin Number
A20 PH9 55
A21 PG11 8
A22 PG10 54
A23
PG9 7
A24 PG1 39
Figure 2-2: IO pin to flash address pin assignment
2.4 Electrical Specification
2.4.1 Supply Voltage

3.3V DC +/-10%
2.4.2 Supply Voltage Ripple

100mV peak to peak 0-20 MHz
2.4.3 On Board Crystal Frequency

24 MHz: USB Clock

50 MHz: Blackfin Clock
2.4.4 Real Time Clock Crystal

32.768kHz
2.4.5 Supply Current

Maximum current: 350mA @3.3V

Typical operating conditions:
o
Processor running at 600MHz, Core Voltage 1.2V, SDRAM 20% bandwidth utilization at
130MHz; Ethernet idle: 200mA @ 3.3V
o
Processor running at 300MHz, Core Voltage 0.8V SDRAM 20% bandwidth utilization at
130MHz; Ethernet idle: TBD
o
Processor running at 600MHz, Core Voltage 1.2V, SDRAM 20% bandwidth utilization at
130MHz, Ethernet TX/RX active: TBD
2.5 Environmental Specification
2.5.1 Temperature

Operating at full 600MHz: 0 to + 70° C
2.5.2 Humidity

Operating: 10% to 90% (non condensing)