isp1302 NXP Semiconductors, isp1302 Datasheet - Page 19

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

NXP Semiconductors
Table 11.
ISP1302_1
Product data sheet
Pin name
V
V
DP
DM
RCV
RESET_N, SDA, SCL, ADR/PSW,
SE0/VM, DAT/VP, INT_N,
OE_N/INT_N, SERVICE_N
SPKR_R/MIC, SPKR_L, ID, V
CR_INT, C_A, C_B
CC
CC(I/O)
, VREG
ISP1302 pin states in disable and isolate modes
8.2 USB modes
The two USB modes of the ISP1302 are:
In VP_VM USB mode, pin DAT/VP is used for the VP function, pin SE0/VM is used for the
VM function, and pin RCV is used for the RCV function.
In DAT_SE0 USB mode, pin DAT/VP is used for the DAT function, pin SE0/VM is used for
the SE0 function, and pin RCV is not used.
Table 12
Table 12.
[1]
[2]
[3]
[4]
[5]
[6]
[7]
USB mode
VP_VM
DAT_SE0
•
•
VP_VM bidirectional mode
DAT_SE0 bidirectional mode
Some of the modes and signals are provided to achieve backward compatibility with IP cores.
TxD+ and TxD are single-ended inputs to drive the DP and DM outputs, respectively, in single-ended
mode.
RxD+ and RxD are the outputs of the single-ended receivers connected to DP and DM, respectively.
TxD is the input to drive DP and DM in DAT_SE0 mode.
FSE0 is to force an SE0 on the DP and DM lines in DAT_SE0 mode.
RxD is the output of the differential receiver.
RSE0 is an output, indicating that an SE0 is received on the DP and DM lines.
BUS
,
specifies the functionality of the device during the two USB modes.
[1]
USB functional modes: I/O values
Disable mode (V
powered
not present
15 k pull-down resistor enabled
15 k pull-down resistor enabled
high-Z
high-Z
high-Z
Bit
DAT_SE0
0
1
Rev. 01 — 24 May 2007
CC
Pin
OE_N/INT_N
LOW
HIGH
LOW
HIGH
= on, V
CC(I/O)
= off)
USB OTG transceiver with carkit support
DAT/VP
TxD+
RxD+
TxD
RxD
[4]
Isolate mode (V
not present
powered
high-Z
high-Z
drive LOW
high-Z
high-Z
[6]
[2]
[3]
SE0/VM
TxD
RxD
FSE0
RSE0
[2]
CC
[3]
[5]
[7]
= off, V
© NXP B.V. 2007. All rights reserved.
ISP1302
RCV
RxD
RxD
RxD
RxD
CC(I/O)
[6]
[6]
[6]
[6]
19 of 63
= on)