TMS320DM6437_15 Datasheet, PDF (236/306 Pages) Texas Instruments – Digital Media Processor

TMS320DM6437
Digital Media Processor
SPRS345D – NOVEMBER 2006 – REVISED JUNE 2008
6.11.2 UART Electrical Data/Timing
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Table 6-50. Timing Requirements for UARTx Receive⁽¹⁾ (see Figure 6-28)
NO.
4
t_w(URXDB)
Pulse duration, receive data bit (URXDx) [15/30/100 pF]
5
t_w(URXSB)
Pulse duration, receive start bit [15/30/100 pF]
(1) U = UART baud time = 1/programmed baud rate.
-7/-6/-5/-4
-L/-Q6/-Q5/-Q4
MIN
MAX
0.96U
1.05U
0.96U
1.05U
UNIT
ns
ns
Table 6-51. Switching Characteristics Over Recommended Operating Conditions for UARTx Transmit⁽¹⁾
(see Figure 6-28)
NO.
PARAMETER
1
f_(baud)
Maximum programmable baud rate
2
t_w(UTXDB)
Pulse duration, transmit data bit (UTXDx) [15/30/100 pF]
3
t_w(UTXSB)
Pulse duration, transmit start bit [15/30/100 pF]
(1) U = UART baud time = 1/programmed baud rate.
-7/-6/-5/-4
-L/-Q6/-Q5/-Q4
MIN
MAX
128
U-2
U+2
U-2
U+2
UNIT
kHz
ns
ns
3
2
Start
UTXDx
Bit
Data Bits
5
4
URXDx
Start
Bit
Data Bits
Figure 6-28. UART Transmit/Receive Timing
236 Peripheral Information and Electrical Specifications
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