adsp-bf548 Analog Devices, Inc., adsp-bf548 Datasheet - Page 26

• Manufacturer Part Number: adsp-bf548
• Description: Blackfin Embedded Processor
• Manufacturer: Analog Devices, Inc.

ADSP-BF542/ADSP-BF544/ADSP-BF547/ADSP-BF548/ADSP-BF549
Table 11. Pin Multiplexing
1
2
3
4
ADSP-BF54x processor pin definitions are listed in
see the pin multiplexing scheme, see
Primary Pin
Function
(Number of
Pins)
Port H
GPIO (14 pins)
Port I
GPIO (16 pins)
Port J
GPIO (14 pins)
Port connections may be inputs or outputs after power up depending on the model and boot mode chosen.
All port connections always power up as inputs for some period of time and require resistive termination to a safe condition if used as outputs in the system.
A total of 32 interrupts at once are available from ports C through J, configurable in byte-wide blocks.
GPW functionality available when MXVR is not present or unused.
1, 2
First Peripheral
Function
UART1 (2 pins)
ATAPI_RESET (1 pin)
HOST_ADDR (1 pin)
HOST_ACK (1 pin)
MXVR MRX, MTX,
MRXON/GPW
(3 pins)
Async Addr10–25
(16 pins)
Async CTL and MISC
4
Table
11.
Second Peripheral
Function
PPI0-1_FS3 (2 pins)
TMR8 (1 pin)
TMR9 (1 pin)
TMR10 (1 pin)
AMC Addr 4-9 (6 pins)
Rev. A | Page 26 of 88 | October 2008
Table
12. To
Third Peripheral
Function
TACI1 (1 pin)
Counter Down/Gate
Counter Up/Dir
(1 pin)
DMAR 0–1 (2 pins)
PPI2_FS3 (1 pin)
(1 pin)
Fourth Peripheral
Function
TACI8–10 (3 shared
pins)
TACLK8–10 (3 shared
pins)
HWAITA
Interrupt Capability
Interrupts (8 pins)
Interrupts (6 pins)
Interrupts (8 pins)
Interrupts (8 pins)
Interrupts (8 pins)
Interrupts (6 pins)