ADSP-2191MKCA-160X データシートの表示（PDF） - Analog Devices
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ADSP-2191MKCA-160X Datasheet PDF : 66 Pages
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ADSP-2191
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Table 7. Pin Descriptions (Continued)
September 2001
Pin
Type Function
CLKOUT
O
Clock Output
BYPASS
I
Phase-Lock-Loop (PLL) Bypass mode. The BYPASS pin has a 85 kΩ internal pull-up
resistor.
RCLK1–0
I/O/T SPORT1–0 Receive Clock
RCLK2/SCK1 I/O/T SPORT2 Receive Clock/SPI1 Serial Clock
RFS1–0
I/O/T SPORT1–0 Receive Frame Sync
RFS2/MOSI1 I/O/T SPORT2 Receive Frame Sync/SPI1 Master-Output, Slave-Input data
TCLK1–0
I/O/T SPORT1–0 Transmit Clock
TCLK2/SCK0 I/O/T SPORT2 Transmit Clock/SPI0 Serial Clock
TFS1–0
I/O/T SPORT1–0 Transmit Frame Sync
TFS2/MOSI0 I/O/T SPORT2 Transmit Frame Sync/SPI0 Master-Output, Slave-Input data
DR1–0
I/T SPORT1–0 Serial Data Receive
DR2/MISO1 I/O/T SPORT2 Serial Data Receive/SPI1 Master-Input, Slave-Output data
DT1–0
O/T SPORT1–0 Serial Data Transmit
DT2/MISO0 I/O/T SPORT2 Serial Data Transmit/SPI0 Master-Input, Slave-Output data
TMR2–0
I/O/T Timer output or capture
RXD
I
UART Serial Receive Data
TXD
O
UART Serial Transmit Data
RESET
TCK
TMS
I
Processor Reset. Resets the ADSP-2191 to a known state and begins execution at the program
memory location specified by the hardware reset vector address. The RESET input must be
asserted (low) at power-up. The RESET pin has a 85 kΩ internal pull-up resistor.
I
Test Clock (JTAG). Provides a clock for JTAG boundary scan. The TCK pin has a 85 kΩ
internal pull-up resistor.
I
Test Mode Select (JTAG). Used to control the test state machine. The TMS pin has a 85 kΩ
internal pull-up resistor.
TDI
TDO
I
Test Data Input (JTAG). Provides serial data for the boundary scan logic. The TDI pin has
a 85 kΩ internal pull-up resistor.
O
Test Data Output (JTAG). Serial scan output of the boundary scan path.
TRST
I
Test Reset (JTAG). Resets the test state machine. TRST must be asserted (pulsed low) after
power-up or held low for proper operation of the ADSP-2191. The TRST pin has a 65 kΩ
internal pull-down resistor.
EMU
O
Emulation Status (JTAG). Must be connected to the ADSP-2191 emulator target board
connector only.
VDDINT
P
Core Power Supply. Nominally 2.5 V dc and supplies the DSP’s core processor. (four pins).
20
This information applies to a product under development. Its characteristics and specifications are subject to change with-
REV. PrC
out notice. Analog Devices assumes no obligation regarding future manufacturing unless otherwise agreed to in writing.
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