UR3HCGNP-001 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'UR3HCGNP-001' PDF : 14 Pages View PDF
USB FUNCTIONALITY
The GeniPS2TM is a full-speed
composite USB device that
interfaces PS/2.
The PS/2 interface supports legacy
Human Input Devices (HID)-class
specification and uses two interrupt
endpoints for the PS/2 devices.
The GeniPS2TM handles the merging
of all this data, and sends the data
to the system. Data can come from
either of the two PS/2 ports.
Internal and external mouse and
keyboard data are streamed and
appear to the system as if coming
from a single source.
PIN DEFINITIONS
Mnemonic
Power Supply
VDD
VDD1
AVDD
AVSS
VSS
VSS0
VSS1
XCVRCAP
Reset
_RESET
Oscillator pins
OSCIN
OSCOUT
LPF
USB
_SOF
USB_DP
USB-DM
PS/2
PS2D2
PS2C2
PS2C1
PS2D1
Reserved
Reserved
QFP
Type
16
PWR
74
PWR
17
PWR
19
PWR
13
PWR
9
PWR
73
PWR
72
PWR
10
I
14
I
15
O
18
O
69
O
70
I/O
71
I/O
20
I/O
22
I/O
23
I/O
24
I/O
1-8
N/U
25-40
41-69
75-80
Name and Function
Positive supply voltage
Positive supply voltage
Positive analog reference voltage
Ground: analog signal
Ground: negative supply voltage
Ground: negative supply voltage
Ground: negative supply voltage
Bypass line
Controller hardware reset pin:
Active-low reset line
Oscillator input: input signal from
oscillator
Oscillator output: output signal to
oscillator
Loop filter for frequency synthesizer
USB _SOF signal
USB D+ line
USB D- line
Data line for PS/2 port 2
Clock line for PS/2 port 2
Clock line for PS/2 port 1
Data line for PS/2 port 1
Not used; keep open; reserved for
future functions
Copyright ©1999-2001 Semtech Corporation
3
DOC3-GNP-001-DS-104
www.semtech.com
Share Link: 
