参数资料
型号: MPC8308-KIT
厂商: Freescale Semiconductor
文件页数: 16/83页
文件大小: 0K
描述: KIT EVALUATION FOR MPC830X
标准包装: 1
系列: PowerQUICC II™ PRO
类型: MPU
适用于相关产品: MPC8308
所含物品: 板,线缆,CD,电源
MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 3
Freescale Semiconductor
23
USB
8.4.2
IEEE 1588 Timer AC Specifications
This table provides the IEEE 1588 timer AC specifications.
9USB
9.1
USB Dual-Role Controllers
This section provides the AC and DC electrical specifications for the USB-ULPI interface.
9.1.1
USB DC Electrical Characteristics
This table lists the DC electrical characteristics for the USB interface.
Input low voltage
VIL
—–0.3
0.8
V
Input current
IIN
0 V
V
IN NVDD
± 5
A
Table 29. IEEE 1588 Timer AC Specifications
Parameter
Symbol
Min
Max
Unit
Notes
Timer clock cycle time
tTMRCK
070
MHz
1
Input setup to timer clock
tTMRCKS
——
2, 3
Input hold from timer clock
tTMRCKH
——
2, 3
Output clock to output valid
tGCLKNV
06
ns
Timer alarm to output valid
tTMRAL
——
2
Note:
1. The timer can operate on rtc_clock or tmr_clock. These clocks get muxed and any one of them can be selected.
2. Asynchronous signals.
3. Inputs need to be stable at least one TMR clock.
Table 30. USB DC Electrical Characteristics
Parameter
Symbol
Min
Max
Unit
High-level input voltage
VIH
2
LVDD + 0.3
V
Low-level input voltage
VIL
–0.3
0.8
V
Input current
IIN
—±5
A
High-level output voltage, IOH = –100 AVOH
LVDD – 0.2
V
Low-level output voltage, IOL = 100 AVOL
—0.2
V
Note:
1. The symbol VIN, in this case, represents the NVIN symbol referenced in Table 1 and Table 2.
Table 28. GPIO DC Electrical Characteristics (continued)
Characteristic
Symbol
Condition
Min
Max
Unit
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