ADSP-21371KSWZ-2B Analog Devices Inc, ADSP-21371KSWZ-2B Datasheet - Page 41

• Manufacturer Part Number: ADSP-21371KSWZ-2B
• Description: IC DSP 32BIT 266MHZ 208-LQFP
• Manufacturer: Analog Devices Inc
• Series: SHARC®r
• Type: Floating Pointr

Specifications of ADSP-21371KSWZ-2B

• Package / Case: 208-LQFP
• Interface: DAI, DPI
• Operating Temperature: 0°C ~ 70°C
• Clock Rate: 266MHz
• Non-volatile Memory: ROM (512 kB)
• On-chip Ram: 128kB
• Voltage - I/o: 3.30V
• Voltage - Core: 1.20V
• Mounting Type: Surface Mount
• Svhc: No SVHC (18-Jun-2010)
• Base Number: 21371
• Core Frequency Typ: 266MHz
• Dsp Type: Floating Point
• Mmac: 532
• No. Of Pins: 208
• Interface Type: SPI, UART
• Rohs Compliant: Yes
• Operating Temperature Range: 0°C To +70°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Universal Asynchronous Receiver-Transmitter
(UART) Port—Receive and Transmit Timing
Figure 31
The maximum baud rate is PCLK/16 where PCLK = 1/t
shown in
Table 39. UART Port
1
Parameter
Timing Requirement
t
Switching Characteristic
t
UART signals RXD and TXD are routed through DPI P14-1 pins using the SRU.
RXD
RXD
1
1
TRANSMIT
RECEIVE
Figure 31
describes UART port receive and transmit operations.
UART RECEIVE
UART TRANSMIT
DPI_P14
DPI_P14
INTERRUPT
INTERNAL
INTERRUPT
INTERNAL
[RXD]
[TXD]
Incoming Data Pulse Width
Incoming Data Pulse Width
-
-
there is some latency between the genera-
1
1
START
Figure 31. UART Port—Receive and Transmit Timing
Rev. 0 | Page 41 of 48 | June 2007
PCLK
. As
DATA(5
DATA(5
-
-
8)
8)
tion of internal UART interrupts and the external data
operations. These latencies are negligible at the data transmis­
sion rates for the UART.
Min
≥95
≥95
STOP
STOP(1
-
2)
UART TRANSMIT BIT SET BY PROGRAM;
UART RECEIVE BIT SET BY DATA STOP;
CLEARED BY WRITE TO TRANSMIT
CLEARED BY FIFO READ
Max
ADSP-21371
Unit
ns
ns