ADSP-BF531 Analog Devices, ADSP-BF531 Datasheet - Page 18

• Manufacturer Part Number: ADSP-BF531
• Description: Blackfin Embedded Processor
• Manufacturer: Analog Devices

ADSP-BF531/ADSP-BF532/ADSP-BF533
Table 9. Pin Descriptions (Continued)
1
2
3
4
5
6
7
8
9
Pin Name
UART Port
RX
TX
Real Time Clock
RTXI
RTXO
JTAG Port
TCK
TDO
TDI
TMS
TRST
EMU
Clock
CLKIN
XTAL
Mode Controls
RESET
NMI
BMODE1–0
Voltage Regulator
VROUT1–0
Supplies
V
V
V
GND
Refer to
See
This pin should be pulled HIGH when not used.
See
See
See
This pin should always be pulled HIGH through a 4.7K Ohm resistor if booting via the SPI port.
This pin should always be pulled LOW when not used.
This pin should be pulled LOW if the JTAG port will not be used.
DDEXT
DDINT
DDRTC
Figure 25
Figure 27
Figure 29
Figure 31
8
8
9
Figure 26 on Page 39
and
and
and
and
Figure 26 on Page 39
Figure 28 on Page 39
Figure 30 on Page 40
Figure 32 on Page 40
to
Figure 30 on Page
I/O Function
I
O
I
O
I
O
I
I
I
O
I
O
I
I
I
O
P
P
P
G
40.
UART Receive
UART Transmit
RTC Crystal Input
RTC Crystal Output
JTAG Clock
JTAG Serial Data Out
JTAG Serial Data In
JTAG Mode Select
JTAG Reset
Emulation Output
Clock/Crystal Input
Crystal Output
Reset
Non-maskable Interrupt
Boot Mode Strap
External FET Drive
I/O Power Supply
Core Power Supply
Real Time Clock Power Supply
External Ground
Rev. 0 | Page 18 of 56 | March 2004
Driver Type
C
C
C
5
5
5
1