ADSP-21375KSZ-2B Analog Devices Inc, ADSP-21375KSZ-2B Datasheet - Page 43

• Manufacturer Part Number: ADSP-21375KSZ-2B
• Description: IC DSP 32BIT 266MHZ 208-MQFP
• Manufacturer: Analog Devices Inc
• Series: SHARC®r
• Type: Floating Pointr

Specifications of ADSP-21375KSZ-2B

• Interface: DAI, DPI
• Clock Rate: 266MHz
• Non-volatile Memory: ROM (256 kB)
• On-chip Ram: 64kB
• Voltage - I/o: 3.30V
• Voltage - Core: 1.20V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 208-MQFP, 208-PQFP
• 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 41. UART Port
1
Parameter
Timing Requirement
t
Switching Characteristic
t
UART signals TXD and RXD are routed through DPI P14-1 pins using the SRU.
TXD
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
t RXD
t TXD
Figure 31. UART Port—Receive and Transmit Timing
Rev. B | Page 43 of 52 | June 2008
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
16t
16t
STOP
STOP(1
PCLK
PCLK
–1
–1
-
2)
UART TRANSMIT BIT SET BY PROGRAM;
UART RECEIVE BIT SET BY DATA STOP;
CLEARED BY WRITE TO TRANSMIT
ADSP-21371/ADSP-21375
CLEARED BY FIFO READ
Max
Unit
ns
ns