FT313HL-R FTDI, FT313HL-R Datasheet - Page 29

• Manufacturer Part Number: FT313HL-R
• Description: USB Interface IC USB High Speed USB Host Controller IC
• Manufacturer: FTDI

Specifications of FT313HL-R

• Rohs: yes
• Product: USB 2.0
• Data Rate: 480 Mbps
• Interface Type: USB
• Operating Supply Voltage: 1.62 V to 3.63 V
• Operating Supply Current: 35 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP-64
• Minimum Operating Temperature: - 40 C

Bit
Table 5-11 Port status and control register
5.3 Configuration registers
5.3.1 EOTTIME register (address = 34h)
Bit
[31:7]
6
[5:4]
[3:2]
Name
Reserved
U_SUSP_N
EOF2_TIME
EOF1_TIME
Name
Copyright © 2012 Future Technology Devices International Limited
Type
Type
RO
R/W
R/W
R/W
Default value
FT313H USB2.0 HS Host Controller Datasheet Version 1.1
Default
value
25’h0
1’b1
2’b00
2’b00
Description
-
Transceiver Suspend Mode
Active low
Places the transceiver in the suspend mode that draws
the minimal power from the power supplies. This is
part of the power management.
EOF 2 Timing Points
Control EOF2 timing point before next SOF.
High-Speed EOF2 Time
00b
01b
10b
11b
Full-Speed EOF2 Time
00b
01b
10b
11b
Low-Speed EOF2 Time
00b
01b
10b 160 clocks (30 MHz) = 64 clocks (12 MHz) = 5.33 µs
11b 320 clocks (30 MHz) = 128 clocks (12 MHz) = 10.66 µs
EOF 1 Timing Points
Controls the EOF1 timing point before next SOF.
This value should be adjusted according to the
maximum packet size.
High-Speed EOF1 Time
00b
01b
10b
11b
Full-Speed EOF1 Time
00b
01b
10b
11b
Low-Speed EOF1 Time
Description
This value reflects the current state of the port,
and may not correspond directly to cause the
Connect Status Change bit to be set.
21000 clocks (30 MHz) = 8400 clocks (12 MHz)=700 µs
2 clocks (30 MHz) = 66 ns
4 clocks (30 MHz) = 133 ns
8 clocks (30 MHz) = 266 ns
16 clocks (30 MHz) = 533 ns
20 clocks (30 MHz)=8 clocks (12 MHz) = 666 ns
40 clocks (30 MHz)=16 clocks (12 MHz) = 1.333 µs
80 clocks (30 MHz) = 32 clocks (12 MHz) = 2.66 µs
160 clocks (30 MHz) = 64 clocks (12 MHz) = 5.3 µs
40 clocks (30 MHz) = 16 clocks (12 MHz) = 1.33 µs
80 clocks (30 MHz) = 32 clocks (12 MHz) = 2.66 µs
1600 clocks (30 MHz) = 640 clocks (12 MHz) = 53.3 µs
1400 clocks (30 MHz) = 560 clocks (12 MHz) = 46.6 µs
1200 clocks (30 MHz) = 480 clocks (12 MHz) = 40 µs
540 clocks (30 MHz) = 18 µs
360 clocks (30 MHz) = 12 µs
180 clocks (30 MHz) = 6 µs
720 clocks (30 MHz) = 24 µs
Document No.: FT_000589
Clearance No.: FTDI# 318
29