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5.14.2
USB2.0 Electrical Data/Timing
TMS320DM6446
Digital Media System on-Chip
SPRS283–DECEMBER 2005
Table 5-61. USB 2.0 Register Descriptions (continued)
Address
Acronym
Register Description
Control and Status Register for Endpoints- EOCSR4
Maximum Packet Size for Peripheral/Host TX Endpoint
Control Status Register for Endpoint 0 in Peripheral Mode
Control Status Register for Endpoint 0 in Host Mode
Control Status Register for Peripheral TX Endpoint
Control Status Register for Host TX Endpoint
Maximum Packet Size for Peripheral/Host RX Endpoint
Control Status Register for Peripheral RX Endpoint
Control Status Register for Host RX Endpoint
Number of Received Bytes in Endpoint 0 FIFO
Number of Bytes in Host RX Endpoint FIFO
Defines the Speed of Endpoint 0
Sets the operating speed, transaction protocol and peripheral endpoint number
for the host TX endpoint.
HOST_NAKLIMIT0
Sets the NAK response timeout on Endpoint 0.
HOST_TXINTERVAL
Sets the polling interval for Interrupt/ISOC transactions or the NAK response
timeout on Bulk transactions for host TX endpoint.
HOST_RXTYPE
Sets the operating speed, transaction protocol and peripheral endpoint number
for the host RX endpoint.
HOST_RXINTERVAL
Sets the polling interval for Interrupt/ISOC transactions or the NAK response
timeout on Bulk transactions for host RX endpoint.
CONFIGDATA
Returns details of core configuration
FIFOSIZE
Returns the configured size of the selected RX FIFO and TX FIFOs
Reserved
Reserved
Reserved
Reserved
0x01C6 4540
0x01C6 4542
0x01C6 4542
0x01C6 4542
0x01C6 4542
0x01C6 4544
0x01C6 4543
0x01C6 4543
0x01C6 4548
0x01C6 4548
0x01C6 454A
0x01C6 454A
TXMAXP
PERI_CSR0
HOST_CSR0
PERI_TXCSR
HOST_TXCSR
RXMAXP
PERI_RXCSR
HOST_RXCSR
COUNT0
RXCOUNT
HOST_TYPE0
HOST_TXTYPE
0x01C6 454B
0x01C6 454B
0x01C6 454C
0x01C6 454D
0x01C6 454F
0x01C6 454F
0x01C6 4560
0x01C6 5FFF
Table 5-62. Switching Characteristics Over Recommended Operating Conditions for USB2.0 (see
Figure 5-51
)
-594
LOW SPEED
1.5 Mbps
MIN
75
75
80
1.3
FULL SPEED
12 Mbps
MIN
4
4
90
1.3
HIGH SPEED
480 Mbps
MIN
0.5
0.5
TBD
–
NO.
PARAMETER
UNIT
MAX
300
300
125
MAX
20
20
111.11
MAX
1
2
3
4
5
t
r(D)
t
f(D)
t
rfM
V
CRS
t
jr(source)NT
t
jr(FUNC)NT
t
jr(source)PT
t
jr(FUNC)PT
t
w(EOPT)
t
w(EOPR)
t
(DRATE)
Rise time, USB_DP and USB_DM signals
(1)
Fall time, USB_DP and USB_DM signals
(1)
Rise/Fall time, matching
(2)
Output signal cross-over voltage
(1)
Source (Host) Driver jitter, next transition
Function Driver jitter, next transition
Source (Host) Driver jitter, paired transition
(4)
Function Driver jitter, paired transition
Pulse duration, EOP transmitter
Pulse duration, EOP receiver
Data Rate
ns
ns
%
V
ns
ns
ns
ns
ns
ns
TBD
2
2
2
2
2
1
1
–
TBD
(3)
TBD
(3)
TBD
(3)
TBD
(3)
25
6
1
10
7
8
9
1250
670
1500
160
82
175
–
–
–
1.5
12
480 Mb/s
(1)
(2)
(3)
(4)
Low Speed: C
= 200 pF, Full Speed: C
= 50 pF, High Speed: C
= TBD pF
t
= (t
/t
) x 100. [Excluding the first transaction from the Idle state.]
For more detailed information, see the Universal Serial Bus Specification Revision 2.0, Chapter 7. Electrical.
t
jr
= t
px(1)
- t
px(0)
178
Peripheral and Electrical Specifications