Datasheet

AM1808
www.ti.com SPRS653E –FEBRUARY 2010–REVISED MARCH 2014
6.21 Universal Serial Bus Host Controller (USB1) [USB1.1 OHCI]
All the USB interfaces for this device are compliant with Universal Serial Bus Specifications, Revision 1.1.
Table 6-88 is the list of USB Host Controller registers.
Table 6-88. USB Host Controller Registers
USB1
ACRONYM REGISTER DESCRIPTION
BYTE ADDRESS
0x01E2 5000 HCREVISION OHCI Revision Number Register
0x01E2 5004 HCCONTROL HC Operating Mode Register
0x01E2 5008 HCCOMMANDSTATUS HC Command and Status Register
0x01E2 500C HCINTERRUPTSTATUS HC Interrupt and Status Register
0x01E2 5010 HCINTERRUPTENABLE HC Interrupt Enable Register
0x01E2 5014 HCINTERRUPTDISABLE HC Interrupt Disable Register
0x01E2 5018 HCHCCA HC HCAA Address Register
(1)
0x01E2 501C HCPERIODCURRENTED HC Current Periodic Register
(1)
0x01E2 5020 HCCONTROLHEADED HC Head Control Register
(1)
0x01E2 5024 HCCONTROLCURRENTED HC Current Control Register
(1)
0x01E2 5028 HCBULKHEADED HC Head Bulk Register
(1)
0x01E2 502C HCBULKCURRENTED HC Current Bulk Register
(1)
0x01E2 5030 HCDONEHEAD HC Head Done Register
(1)
0x01E2 5034 HCFMINTERVAL HC Frame Interval Register
0x01E2 5038 HCFMREMAINING HC Frame Remaining Register
0x01E2 503C HCFMNUMBER HC Frame Number Register
0x01E2 5040 HCPERIODICSTART HC Periodic Start Register
0x01E2 5044 HCLSTHRESHOLD HC Low-Speed Threshold Register
0x01E2 5048 HCRHDESCRIPTORA HC Root Hub A Register
0x01E2 504C HCRHDESCRIPTORB HC Root Hub B Register
0x01E2 5050 HCRHSTATUS HC Root Hub Status Register
0x01E2 5054 HCRHPORTSTATUS1 HC Port 1 Status and Control Register
(2)
0x01E2 5058 HCRHPORTSTATUS2 HC Port 2 Status and Control Register
(3)
(1) Restrictions apply to the physical addresses used in these registers.
(2) Connected to the integrated USB1.1 phy pins (USB1_DM, USB1_DP).
(3) Although the controller implements two ports, the second port cannot be used.
Table 6-89. Switching Characteristics Over Recommended Operating Conditions for USB1 [USB1.1]
1.3V,1.2V, 1.1V, 1.0V
NO. PARAMETER LOW SPEED FULL SPEED UNIT
MIN MAX MAX MAX
U1 t
r
Rise time, USB.DP and USB.DM signals
(1)
75
(1)
300
(1)
4
(1)
20
(1)
ns
U2 t
f
Fall time, USB.DP and USB.DM signals
(1)
75
(1)
300
(1)
4
(1)
20
(1)
ns
U3 t
RFM
Rise/Fall time matching
(2)
80
(2)
120
(2)
90
(2)
110
(2)
%
U4 V
CRS
Output signal cross-over voltage
(1)
1.3
(1)
2
(1)
1.3
(1)
2
(1)
V
U5 t
j
Differential propagation jitter
(3)
-25
(3)
25
(3)
-2
(3)
2
(3)
ns
U6 f
op
Operating frequency
(4)
1.5 12 MHz
(1) Low Speed: C
L
= 200 pF. High Speed: C
L
= 50pF
(2) t
RFM
=( t
r
/t
f
) x 100
(3) t
jr
= t
px(1)
- t
px(0)
(4) f
op
= 1/t
per
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