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PDF UR8HC007-001-FQ Data sheet ( Hoja de datos )

Número de pieza UR8HC007-001-FQ
Descripción Input Device and Power Management Companion IC for Jupiter Devices
Fabricantes Semtech Corporation 
Logotipo Semtech Corporation Logotipo



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JunoTM UR8HC007-001
Input Device and Power Management
Companion IC for Jupiter Devices
HID & SYSTEM MANAGEMENT PRODUCTS, H/PC IC FAMILY
DESCRIPTION
JunoTM 01 is a member of a series of
multi-functional companion ICs for
Jupiter and other devices running
Microsoft® Windows® CE and
utilizing RISC-based processors.
The IC interfaces the system via
either asynchronous serial or the
Serial Peripheral Interface (SPI) and
provides keyboard scanning,
special general purpose I/O (GPIO)
and unique system power
management capabilities.
The Zero-PowerTM JunoTM will power
down even between key presses.
Semtech’s proprietary circuitry
(patent pending) allows the IC to
power down even when PS/2
devices are connected and active.
Typical power consumption is less
than 1 µA, a first for embedded ICs.
The JunoTM provides continuous
operation between 3 and 5V and
scans a fully programmable 8 X 16
keyboard matrix. The IC is equipped
with three Zero-PowerTM PS/2 ports
for the hot-plug connection of an
external PS/2 keyboard and mouse
as well as an internal PS/2 mouse,
including those with MouseWheels.
In addition, the JunoTM offers special
general purpose I/O (GPIO), ideal
for use for lid functions, power
switches, ring indicators, docking
signals, battery measurement, LEDs,
etc.
The integration of features, many of
them programmable, on one IC
increases flexibility and reduces
component count and cost.
FEATURES
• Typically consumes less than 1 µA
• Scans a fully programmable 8 X
16 matrix that supports Japanese,
English and European keyboards
• Operates continuously between 3
and 5 Volts
• Offers unique power management
capabilities that work in harmony
with Windows® CE’s power modes
• Always runs in “Stop” mode
without data or event loss
• Provides three Zero-PowerTM PS/2
ports for the hot-plug connection
of external keyboards/mice &
internal mouse, including
MouseWheels
• Uses proprietary circuitry, so
“Stop” mode is entered even when
PS/2 devices are connected and
active
• Available in 1.7mm high package
to accommodate slim designs
• GPIO pins provide interrupt at
both falling and rising edge of
signals, ideal for lid functions,
power, ring indicators, docking
signals, battery measurement, etc.
• Has additional GPIO available for
LEDs, switches, etc.
• Offers internal control of LCD
brightness/contrast, audio, etc. as
well as four 10-bit A/D channels
for power management monitoring
• Cost-effective, reducing overall
system costs by integrating
features that would typically
require multiple additional
components
• Provides programmable features
that allow for maximum design
differentiation without
customization
• Other JunoTM versions offer control
of internal pointing device
PIN ASSIGNMENTS
• Jupiter devices/Professional PCs
• H/PCs, Web Phones, & G3
Terminals
APPLICATIONS
60 41
61
PWM1
PWM0
R7
R6
R5
R4
R3
R2
R1
R0
VDD
AVREF
AVSS
EPX10
EPX9
EPX1
EPX0
GIO33/AD3
GIO32/AD2
GIO31/AD1
80
UR8HC007-001-FQ
40
C14
C15
EPX3
EPX2
GIO14/SW14
GIO15/SW15
GIO00/LED0
GIO01/LED1
GIO02/LED2
GIO03/LED3
VSS
OSCO
OSCI
PS2EN
HSUS
RESET
VSS1
LID
PWROK
MOSI/RXD
21
Juno is a trademark of Semtech Corporation. All
other trademarks belong to their respective
companies.
1
20
Copyright @1998-2001 Semtech Corporation
DOC8-007-001-DS-108
1
www.semtech.com

1 page




UR8HC007-001-FQ pdf
PIN DEFINITIONS (CONT)
Mnemonic
_HSUS
Pin Numbers
QFP
Type
26 I
Communication
interface
_SS/_RTS
60 I_Int
_ATN/_CTS
18 O
MISO/TXD
MOSI/RXD
SCLK/ISEL
20 I/O / O
21 I
19 I
Note 1: An underscore in front of the pin
mnemonic denotes an active low signal.
Name and Function
Host_Suspended signal
(Active-Low). When Low, indicates
that Host Computer System is in
Power-reduced or Stop mode.
Slave_Select (SPI Mode) or
Ready_To_Send (Asynchronous
Serial Mode). Active-Low signal Input.
Low-level indicates that the Host
System has data for the UR8HC007-
001 peripheral device or the Host
System is ready to accept data from
the UR8HC007-001 peripheral device.
Capable of Interrupt on Negative edge.
Pin 60 and pin 18 should both be "Low"
for data exchange to occur.
Attention (SPI Mode) or
Clear_To_Send (Asynchronous
Serial Mode ). Active-Low signal
Output. Low-level indicates that the
UR8HC007-001 peripheral device has
data for the Host System or the
UR8HC007 peripheral device is ready
to accept data from the Host System.
Pin 18 and pin 60 should both be "Low"
for data exchange to occur.
Master-In-Slave-Out (SPI Mode) or
Transmit Data (Asynchronous Serial
Mode, Idle = "High" = 1)
Master-Out-Slave-In (SPI Mode) or
Receive Data (Asynchronous
Serial Mode)
Serial Clock (SPI Mode) or Interface
Select (Asynchronous Serial Mode).
Tie "Low" to select Asynchronous
Serial Mode. In SPI Mode, use the
following Clock sequence: Idle-High /
Negative-Edge (Shift Data) \ Positive-
Edge (Latch Data), Idle-High.
Copyright ©1998-2001 Semtech Corporation
DOC8-007-001-DS-108
5
www.semtech.com

5 Page





UR8HC007-001-FQ arduino
ZERO-POWERTM OPERATION OF PS/2 PORTS
The Junoimplements the
Semtech-patented "Message loss-
less wake-up" method to operate
all three PS/2 ports. This method
enables the controller to interface
with devices attached to its PS/2
ports while still operating in the
"Stop" mode. Typical power
consumption of the PS/2 ports is
therefore 1 µA.
If a PS/2 device reports a data
packet, the controller will exit the
"Stop" mode for as long as it takes
to process the device message and
relay the information, if necessary,
to the Host system. This operation
is done transparently to the Host,
without any message loss or any
response delays from the input
devices.
PS/2 PORTS
The UR8HC007-001 provides three PS/2 ports for the hot-plug connection of
an external keyboard, an external mouse and an internal mouse.
All of the internal and external devices are active at all times. Data from
both the external and internal keyboards and mice are merged and
seamlessly presented to the system.
5-Volt Tolerant PS/2 ports
The UR8HC007 controller can be powered by a power supply between 3
and 5 Volts (+/- 10%). Even when the USAR controller is powered by a 3-
Volt supply, the three PS/2 ports can directly interface with 5-Volt powered
devices without the need of any external level-shifting circuitry. The Host
can enable or disable all the external PS/2 ports simultaneously, in sync with
the 5-Volt power plane that powers them. Alternatively, it can select any
PS/2 port selectively, through the "HID enable/disable control" register.
PS/2 Mouse Handling
The JunoTM provides a port for the connection of an internal PS/2 mouse.
This port supports MouseWheel functionality.
This unique technology allows
computers to operate at their
minimum power consumption state
even with PS/2 devices attached.
Systems that employ an internal
pointing device, such as a touch
pad or a force stick, can benefit the
most from this feature, since the
pointing device will force the
controller to exit its "Stop" mode only
when there is data to be reported.
An internal mouse connected to a systems PS/2 port consumes a significant
amount of power as it must always be on.A mouse connected to one of
JunosPS/2 ports consumes minimal power because the Junowill
power down even when the internal mouse is connected and active.
Copyright ©1998-2001 Semtech Corporation
DOC8-007-001-DS-108
11
www.semtech.com

11 Page







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