isp1302 NXP Semiconductors, isp1302 Datasheet - Page 30

• Manufacturer Part Number: isp1302
• Description: Isp1302 Universal Serial Bus On-the-go Transceiver With Carkit Support
• Manufacturer: NXP Semiconductors

NXP Semiconductors
ISP1302_1
Product data sheet
Table 39.
Bit
7
6
5
4
3
2
1
0
Symbol
DP_INT
BDIS_ACON
ID_FLOAT
DM_HI
ID_GND
DP_HI
SESS_VLD
VBUS_VLD
Interrupt Source register (address R = 08h) bit description
Description
This bit has two functions:
When the Carkit Interrupt Delay register is 0h and the voltage on the
CR_INT pin is below the carkit interrupt threshold (0.4 V to 0.6 V), this bit
is set.
0 — Voltage on the CR_INT pin is above the carkit interrupt threshold
(0.4 V to 0.6 V).
1 — Voltage on the CR_INT pin is below the carkit interrupt threshold
(0.4 V to 0.6 V).
When the Carkit Interrupt Delay register is nonzero and the voltage on the
CR_INT pin is below the carkit interrupt threshold (0.4 V to 0.6 V) for a
period of time defined in the Carkit Interrupt Delay register, this bit is set.
0 — No event
1 — The carkit stereo interrupt event is detected.
In power-down mode, this bit is fixed as logic 0.
Set when bit BDIS_ACON_EN is set, and the ISP1302 enables the DP
pull-up resistor after detecting the B-device disconnect (SE0).
0 — No event
1 — BDIS_ACON is detected.
Indicates the status of pin ID.
0 — ID pin is not floating.
1 — ID pin is floating.
DM single-ended receiver output.
0 — LOW
1 — HIGH
Indicates the status of pin ID:
0 — ID pin is not grounded.
1 — ID pin is grounded.
In power-down mode, this bit is fixed as logic 0.
DP single-ended receiver output.
0 — LOW
1 — HIGH
V
0 — V
ID_GND = 0).
1 — V
ID_GND = 0).
This bit has two functions:
For the A-device (bit ID_GND = 1), it acts as the V
0 — V
1 — V
For the B-device (bit ID_GND = 0), it acts as B_SESS_END (B-device
session end detector).
0 — V
1 — V
In power-down mode, this bit is fixed as logic 0.
BUS
Rev. 01 — 24 May 2007
session valid detector.
BUS
BUS
BUS
BUS
BUS
BUS
is higher than V
is lower than V
is lower than the V
is higher than the V
is above the B-device session end threshold (0.2 V to 0.8 V).
is below the B-device session end threshold (0.2 V to 0.8 V).
A_SESS_VLD
A_SESS_VLD
USB OTG transceiver with carkit support
BUS
BUS
valid threshold.
valid threshold.
(bit ID_GND = 1) or V
(bit ID_GND = 1) or V
BUS
valid detector.
© NXP B.V. 2007. All rights reserved.
ISP1302
B_SESS_VLD
B_SESS_VLD
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