ISP1110VHTS ST-Ericsson Inc, ISP1110VHTS Datasheet - Page 7

• Manufacturer Part Number: ISP1110VHTS
• Description: IC USB TXRX W/UART 16-HBCC
• Manufacturer: ST-Ericsson Inc
• Type: Transceiverr

Specifications of ISP1110VHTS

• Number Of Drivers/receivers: 1/1
• Protocol: USB 2.0
• Voltage - Supply: 4 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-HBCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-3149-2; ISP1110VH-G

NXP Semiconductors
7. Functional description
ISP1110_2
Product data sheet
7.1.1 USB mode
7.1 Modes of operation
The ISP1110 supports two modes of operation:
Table 3
Table 3.
Table 4
Table 4.
When the ISP1110 is in USB mode, pins DP and DM work as the USB D+ and D lines,
respectively. The DP and DM driver is powered by VREG. The USB function is compatible
with the ISP1102 transceiver.
When the ISP1110 is in USB mode, the TXD input pin is ignored and the RXD output pin
is driven LOW.
The ISP1110 is in USB mode when V
must be on.
A short description of the USB detection sequence is:
V
Off
On
On
On
Pin
DP
DM
VP/VPO, VM/VMO
RCV
VBUSDET
RXD
UART_EN, TXD, SUSPEND,
SOFTCON, OE_N
VREG
1. The phone is connected to the USB port of a powered PC.
2. The ISP1110 detects V
•
•
CC(I/O)
USB mode (3.3 V signaling)
UART mode (2.8 V signaling)
the Analog USB Transceiver (ATX) is powered by VREG.
shows the definition of various operating modes.
shows the pin status in various operating modes.
Operating modes: definition
Pin status in various modes
V
X
X
on
X
CC(UART)
Rev. 02 — 19 March 2007
BUS
Isolate mode
not powered
not powered
high-Z
LOW
LOW
LOW
high-Z
not powered
is above V
V
X
off
off
on
CC(5V0)
CC(5V0)
= V
CC(5V0)th
BUS
> V
UART mode
high-Z
driven (= TXD)
LOW when OE_N = HIGH
high-Z when OE_N = LOW
LOW
LOW
driven (= DP)
high-Z
2.8 V
CC(5V0)th
USB transceiver with UART signaling
. The ISP1110 enters USB mode and
UART_EN
X
LOW
HIGH
LOW
and UART_EN is LOW. V
Mode
not defined
isolate mode
UART mode
USB mode
© NXP B.V. 2007. All rights reserved.
ISP1110
USB mode
see
see
see
see
HIGH
LOW
high-Z
3.3 V
Table 5
Table 5
Table 5
Table 5
CC(I/O)
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