UR3HCGNP-100-RH Ver la hoja de datos (PDF) - Semtech Corporation
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UR3HCGNP-100-RH Datasheet PDF : 14 Pages
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USAR GeniPS2TM UR3HCGNP-001
Preliminary
USAR GeniTM USB IC family
product specifications
USAR –– A Semtech Company
USB Functionality
The USAR 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 USAR 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
QFP
Type
16
PWR
74
PWR
17
PWR
19
PWR
13
PWR
9
PWR
73
PWR
72
PWR
10
I
Oscillator pins
OSCIN
OSCOUT
LPF
USB
_SOF
USB_DP
USB-DM
PS/2
PS2D2
PS2C2
PS2C1
PS2D1
Reserved
Reserved
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
Note 1: An underscore in front of the pin
mnemonic denotes an active low signal.
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
USAR – A Semtech Company
Datasheet
DOC3-GNP-001-DS-101
3
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