參數(shù)資料
型號: TMX320DM647ZUT720
廠商: Texas Instruments, Inc.
英文描述: Digital Media Processor
中文描述: 數(shù)字媒體處理器
文件頁數(shù): 115/166頁
文件大?。?/td> 1341K
代理商: TMX320DM647ZUT720
www.ti.com
P
6.13.2 UART Electrical Data/Timing
3
2
Start
Bit
Data Bits
UART_TXDn
UART_RXDn
5
Data Bits
Bit
Start
4
TMS320DM647/TMS320DM648
Digital Media Processor
SPRS372–MAY 2007
Table 6-45. Timing Requirements for UARTx Receive
(1)
(see
Figure 6-27
)
-720
-900
NO.
UNIT
MIN
0.99U
0.99U
MAX
1.05U
1.05U
4
5
t
w(URXDB)
t
w(URXSB)
Pulse duration, receive data bit (RXDn) [15/30/100 pF]
Pulse duration, receive start bit [15/30/100 pF]
ns
ns
(1)
U = UART baud time = 1/programmed baud rate.
Table 6-46. Switching Characteristics Over Recommended Operating Conditions for UARTx Transmit
(1)
(see
Figure 6-27
)
-720
-900
NO.
PARAMETER
UNIT
MIN
MAX
1
2
3
f
(baud)
t
w(UTXDB)
t
w(UTXSB)
Maximum programmable baud rate
Pulse duration, transmit data bit (TXDn) [15/30/100 pF]
Pulse duration, transmit start bit [15/30/100 pF]
5
MHz
ns
ns
U - 2
U - 2
U + 2
U + 2
Figure 6-27. UART Transmit/Receive Timing
(1)
U = UART baud time = 1/programmed baud rate.
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