CYUSB3302 データシートの表示（PDF） - Cypress Semiconductor
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CYUSB3302 Datasheet PDF : 33 Pages
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CYUSB330x
CYUSB331x
CYUSB332x
Table 6. EEPROM Map (continued)
I2C Offset Bits
Name
Default
Description
16
7 SUSPEND_INDICATOR_DISABL
0 0: Suspend indicator enabled
E
1: Suspend indicator disabled
6 SS_US_DISABLE
5 PWR_EN_POLARITY
0 Hub mode of operation (USB 3.0 or USB 2.0)
0: USB 3.0 hub and USB 2.0 hub enabled
1: USB 3.0 hub disabled and USB 2.0 hub enabled
0 Power control output polarity
0: Active LOW
1: Active HIGH
4:0 PORT_POLARITY
b’00000 USB 2.0 DP and DM swapped
bit[4:0]=DS4, DS3, DS2, DS1, US
1: Port polarity swapped
0: Port polarity not swapped
17
7:5 Reserved
4 BC_ENABLE
0 Reserved
1 0: BC v1.2 disabled
1: BC v1.2 enabled
3 ACA_DOCK
0 If this bit is set, enable ACA-Dock on the US port
2 APPLE_XA
0 0: Max limit for Apple charging 2.1 A
1: Max limit for Apple charging 1 A
1 Reserved
0 Reserved
0 GHOST_CHARGE_EN
1 0: Ghost Charging disabled
1: Ghost Charging enabled
18
7:4 CDP_EN[3:0]
b’1111
Per-port charging setting
bit[7:4]=DS4, DS3, DS2, DS1
0: CDP disabled
1: CDP enabled
3:0 DCP_EN[3:0]
b’0000
Per-port charging setting
bit[3:0]=DS4, DS3, DS2, DS1
0: DCP disabled
1: DCP enabled
19
7 EMBEDDED_HUB
6 ILLEGAL_DESCRIPTOR
0 If this bit is set, the US is as an embedded port and VBUS connected
to VBUS_US pin is ignored.
1 If this bit is set, the USB 2.0 hub controller will accept both 0x00 and
0x29 as valid descriptor types. If '0', only 0x29 will be accepted as a
valid descriptor type.
5 MODULATE_INDICATOR
1 If this bit is set, the LED outputs will be modulated by a 200 Hz
square wave for power saving. If ‘0’, the outputs will be static.
4 OC_POLARITY
0 Overcurrent input polarity
0: Active LOW
1: Active HIGH
3:0 OC_TIMER
b’1000 Time in milliseconds for which the overcurrent inputs will be filtered
20
7:0 Reserved
0 Reserved
21
7:4 Reserved
0 Reserved
3 STRING_DESCRIPTOR_ENABLE 0 0: String descriptor support is disabled
1: String descriptor support is enabled
When string descriptors are not supported, the hub controller returns
a non-zero index (compile-time programmable) for each string which
is supported, and 0x00 for each string not supported, as indicated
by this field.
2:0 Reserved
0 Reserved
22
7:0 Reserved
0 Reserved
Document Number: 001-73643 Rev. *G
Page 21 of 33
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