参数资料
型号: RM48L950PGET
厂商: TEXAS INSTRUMENTS INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 200 MHz, RISC MICROCONTROLLER, PQFP144
封装: GREEN, PLASTIC, LQFP-144
文件页数: 60/154页
文件大小: 2807K
代理商: RM48L950PGET
PRODUCTPREVIEW
TXENL
TXDPLS
TXSE0
RCVDPLS
RCVDMNS
RCVDATA
Transmit
Receive
FSU15
FSU18
FSU16
FSU19
FSU17
FSU20
FSU21
SPNS174
– SEPTEMBER 2011
5.11 Universal Serial Bus Controller
5.11.1 Features
This device provides several varities of USB functionality, including:
One full-speed USB device port compatible with the USB Specification Revision 2.0 and USB
Specification Revision 1.1
Two USB host ports compatible with USB Specification Revision 2.0, which is based on the OHCI
Specification For USB Release 1.0.
5.11.2 Electrical and Timing Specifications
Table 5-27. Full-Speed USB Interface Timing Requirements(1)
NO.
Parameter
MIN
MAX
Unit
FSU20
td(VPL, VML)
Time duration, RCVDPLS and
14
ns
RCVDMNS low together during
transition
FSU21
td(VPH, VMH)
Time duration, RCVDPLS and
8
ns
RCVDMNS high together during
transition
(1)
The capacitive loading is equivalent tp 15 pF
Table 5-28. Full-Speed USB Interface Switching Characteristics(1)
NO.
Parameter
MIN
MAX
Unit
FSU15
td(TXENL–DATV)
Delay time TXENL active to
0
1.5
ns
TXDPLS valid
FSU16
td(TXENL–SE0V)
Delay time TXENL active to TXSE0
0
1.5
ns
valid
FSU17
ts(DAT–SE0)
Skew between TXDPLS and TXSE0
1.5
ns
transition
FSU18
td(TXENH–DATI)
Delay time TXENL inactive to
0
1.5
ns
TXDPLS invalid
FSU19
td(TXENH–SE0I)
Delay time TXENL inactive to
0
1.5
ns
TXSE0 invalid
(1)
The capacitive loading is equivalent tp 15 pF
Figure 5-21. Full-Speed USB Interface
– Transmit and Receive Modes
152
Peripheral Information and Electrical Specifications
Copyright
2011, Texas Instruments Incorporated
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