ADSP-BF522 AD [Analog Devices], ADSP-BF522 Datasheet - Page 25

• Manufacturer Part Number: ADSP-BF522
• Description: Blackfin Embedded Processor
• Manufacturer: AD [Analog Devices]

Preliminary Technical Data
Table 10. Signal Descriptions (Continued)
Signal Name
Port J: Multiplexed Peripherals
Real Time Clock
JTAG Port
Clock
Mode Controls
ADSP-BF523/525/527 Voltage Regulation I/F
ADSP-BF522/524/526 Voltage Regulation I/F
PJ0: PPI_FS1/TMR0
PJ1: PPI_CLK/TMRCLK
PJ2: SCL
PJ3: SDA
RTXI
RTXO
TCK
TDO
TDI
TMS
TRST
EMU
CLKIN
XTAL
CLKBUF
RESET
NMI
BMODE3–0
VR
VR
EXT_WAKE0
SS/PG
EXT_WAKE1
EXT_WAKE0
PG
SEL
OUT
/EXT_WAKE1
Type Function
I/O
I
I/O 5V TWI Serial Clock (This pin is an open-drain output and requires a pull-up
I/O 5V TWI Serial Data (This pin is an open-drain output and requires a pull-up
I
O
I
O
I
I
I
O
I
O
O
I
I
I
I
O
O
I
O
O
I
Rev. PrG | Page 25 of 80 | February 2009
PPI Frame Sync1/Timer0
PPI Clock/Timer Clock
resistor.
resistor.
RTC Crystal Input (This ball should be pulled low when not used.)
RTC Crystal Output
JTAG Clock
JTAG Serial Data Out
JTAG Serial Data In
JTAG Mode Select
JTAG Reset (This ball should be pulled low if the JTAG port is not used.)
Emulation Output
Clock/Crystal Input
Crystal Output
Buffered XTAL Output
Reset
Nonmaskable Interrupt (This ball should be pulled high when not used.)
Boot Mode Strap 3-0
Internal/External Voltage Regulator Select
External FET Drive/Wake up Indication 1
Wake up Indication 0
Soft Start/Power Good
Wake up Indication 1
Wake up Indication 0
Power Good
4
4
)
)
ADSP-BF522/523/524/525/526/527
Driver
Type
C
E
E
C
C
C
G
C
C
C
1