Jetmobile SIA81 User Manual
"SecureJet Intelligent Appliance 8.1 - COMPANY CONFIDENTIAL"
Ref. SIA8.1_SRM Rev. B 1.0.0
SecureJet Intelligent Appliance 8.1
System Reference Manual
Revision B 1.0.0
April 2sd, 2014
Author: Patrick Touzeau
Contributing Editor: Xavier Raudin
Contact: jf.destalenx@jetmobile.com
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"SecureJet Intelligent Appliance 8.1 - COMPANY CONFIDENTIAL"
Ref. SIA8.1_SRM Rev. B 1.0.0
TABLE OF CONTENTS
1 Introduction.............................................................................................................................................................. 4
2 Change History........................................................................................................................................................ 5
2.1 Document Change History ........................................................................................5
2.2 Board Changes.........................................................................................................5
2.2.1 Rev A 1.0.2.................................................................................................................................... 5
2.2.2 Rev B 1.0.0.................................................................................................................................... 5
3 SecureJet Intelligent Appliance 8.1 Overview.......................................................................................................... 6
3.1 SecureJet Intelligent Appliance 8.1 Features and Specification........................................6
3.2 Board Component Locations ......................................................................................7
4 SecureJet Intelligent Appliance 8.1 BOARD High Level Specification....................................................................9
4.1 Processor ................................................................................................................9
4.2 Memory ..................................................................................................................9
4.2.1 256MB DDR3L .............................................................................................................................. 9
4.2.2 2GB Embedded MMC ................................................................................................................... 9
4.2.3 MicroSD Connector ...................................................................................................................... 9
4.2.4 Boot Modes ................................................................................................................................... 9
4.3 Power Management ................................................................................................10
4.4 Serial Debug Port ...................................................................................................10
4.5 USB1 Host Port ......................................................................................................10
4.6 Power Sources .......................................................................................................10
4.7 Reset Button .........................................................................................................10
4.8 Power Button .........................................................................................................10
5 Detailed Hardware Design..................................................................................................................................... 12
5.1 Power Section ........................................................................................................12
5.1.1 TPS65217C PMIC ...................................................................................................................... 12
5.1.2 DC POWER................................................................................................................................. 13
5.1.3 Power Button .............................................................................................................................. 13
5.1.4 Power Consumption ................................................................................................................... 13
5.1.5 Processor Interfaces ................................................................................................................... 14
5.1.5.1 I2C0 ............................................................................................................................... 14
5.1.5.2 PMC_POWR_EN ........................................................................................................... 14
5.1.5.3 LDO_GOOD .................................................................................................................. 14
5.1.5.4 PMIC_PGOOD .............................................................................................................. 14
5.1.5.5 WAKEUP ....................................................................................................................... 14
5.1.5.6 PMIC_INT ...................................................................................................................... 14
5.1.6 Power Rails ................................................................................................................................. 15
5.1.6.1 VRTC Rail ...................................................................................................................... 15
5.1.6.2 VDD_3V3A Rail ............................................................................................................. 15
5.1.6.3 VDD_3V3B Rail ............................................................................................................. 15
5.1.6.4 VDD_1V8 Rail ................................................................................................................ 16
5.1.6.5 VDD_CORE Rail ............................................................................................................ 16
5.1.6.6 VDD_MPU Rail .............................................................................................................. 16
5.1.6.7 VDDS_DDR Rail ............................................................................................................ 16
5.1.6.8 Power Sequencing.......................................................................................................... 16
5.1.7 TPS65217C Power Up Process ................................................................................................. 17
5.1.8 Processor Control Interface ........................................................................................................ 18
5.1.9 Low Power Mode Support ........................................................................................................... 18
5.1.9.1 RTC Only ....................................................................................................................... 18
5.1.9.2 RTC Plus DDR ............................................................................................................... 18
5.1.9.3 Voltage Scaling .............................................................................................................. 18
5.2 Sitara XAM3352BZCZ Processor ...............................................................................19
5.2.1 Description .................................................................................................................................. 19
5.3 DDR3L Memory ......................................................................................................20
5.3.1 Memory Device ........................................................................................................................... 20
5.3.2 DDR3L Memory Design .............................................................................................................. 20
5.3.3 Power Rails ................................................................................................................................. 21
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"SecureJet Intelligent Appliance 8.1 - COMPANY CONFIDENTIAL"
Ref. SIA8.1_SRM Rev. B 1.0.0
5.3.4 VREF .......................................................................................................................................... 21
5.4 2GB eMMC Memory ................................................................................................23
5.4.1 6.4.1 eMMC Device .................................................................................................................... 23
5.4.2 eMMC Circuit Design .................................................................................................................. 24
5.5 Micro Secure Digital ...............................................................................................26
5.5.1 microSD Design .......................................................................................................................... 26
5.6 User LEDs .............................................................................................................27
5.7 Boot Configuration .................................................................................................28
5.7.1 Default Boot Options ................................................................................................................... 28
5.8 10/100 Ethernet ....................................................................................................29
5.8.1 Ethernet Processor Interface ...................................................................................................... 29
5.8.2 Ethernet Connector Interface ...................................................................................................... 31
5.8.3 Ethernet PHY Power, Reset, and Clocks .................................................................................... 31
5.8.3.1 VDD_3V3B Rail ............................................................................................................. 31
5.8.3.2 VDD_PHYA Rail ............................................................................................................. 31
5.8.3.3 PHY_VDDCR Rail ......................................................................................................... 31
5.8.3.4 SYS_RESET .................................................................................................................. 32
5.8.3.5 Clock Signals ................................................................................................................. 32
5.8.4 LAN8710A Mode Pins ................................................................................................................. 32
5.9 USB Host...............................................................................................................33
5.9.1 Power Switch .............................................................................................................................. 33
5.9.2 ESD Protection ........................................................................................................................... 33
5.9.3 Filter Options .............................................................................................................................. 33
6 Connectors............................................................................................................................................................. 34
7 SCHEMATIC.......................................................................................................................................................... 35
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(c)2014 Jetmobile Pte Ltd
"SecureJet Intelligent Appliance 8.1 - COMPANY CONFIDENTIAL"
Ref. SIA8.1_SRM Rev. B 1.0.0
1 INTRODUCTION
This document is the System Reference Manual for the SecureJet Intelligent Appliance 8.1
board and covers its use and design. The board will primarily be referred to in the remainder of
this document simply as the board, although it may also be referred to as the SecureJet
Intelligent Appliance 8.1 board as a reminder.
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"SecureJet Intelligent Appliance 8.1 - COMPANY CONFIDENTIAL"
Ref. SIA8.1_SRM Rev. B 1.0.0
2 CHANGE HISTORY
This section describes the change history of this document and board. Document changes are
not always a result of a board change. A board change will always result in a document
change.
2.1 Document Change History
Rev Changes Date By
A 0.0.1 Preliminary August 19th, 2013 PTU
A 1.0.2 Add Jetmobile logo contact product name, update footer
and header.
February 28th, 2014 PTU
B 1.0.0 Main changes : reset key affected to GPIO, update RTC
power, mDDR power planes (board)
March 12th, 2014 PTU
2.2 Board Changes
2.2.1 Rev A 1.0.2
This is the initial production release of the board. We will be tracking changes from this point
forward.
2.2.2 Rev B 1.0.0
Lidt of modifications :
• Change required PCB revision to B.
• Change PCB Copyrigth 2014 labels.
• Reset key is connected to GPIO2_1.
• RTC power is managed by an external LDO 1.8V U203.
• Change Ethernet Phy address : R934 connected, R923 not connected.
• Change C556 value to 1uF.
• Change R443 value to 100 ohms.
• FB400 connected (Ferrite Bead 150 Ohm 800mA connected).
• Noise issues was observed where the clock oscillator was getting hit due to a suspected
issue in ground bounce. R2 and R3 zero ohm resistors were added to connect the
OSC_GND to the system ground.
• Changes C300 to 2.2uF. This resolved an issue we were seeing in a few boards where
the board would not boot in 1 in 20 tries.
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(c)2014 Jetmobile Pte Ltd
"SecureJet Intelligent Appliance 8.1 - COMPANY CONFIDENTIAL"
Ref. SIA8.1_SRM Rev. B 1.0.0
3 SECUREJET INTELLIGENT APPLIANCE 8.1 OVERVIEW
The board is designed by KWETCH embedded Systems.
3.1 SecureJet Intelligent Appliance 8.1 Features and Specification
This section covers the specifications and features of the board and provides a high level
description of the major components and interfaces that make up the board.
Tableau 1 : provides a list of the features.
Features
Processor
SDRAM Me mory 256 MB DDR3L 40 0 Mhz
Onboard Flash 2GB 8bit Embedded MMC
PMIC TPS652 17C PMIC regulator and one additional LDO
Power Source miniUSB USB or DC Jack
Indicator 2 User co ntrollable LED's integrated into button, 4 Ethernet
HS USB 2.0 Hos t Port Access to USB1 , type A soc ket, 50 0mA LS/F S/HS
Serial Port UART0 access via 6 pin 3.3V TTL Header, Header is populated
Ethernet 1 10/1 00, RJ4 5 w ith LED's
Ethernet 2 10/1 00, RJ4 5 w ith LED's
SD/MMC Connector MicroSD, 3.3V
User Input
Audio Buzz er
RTC RTC function with LiOn battery
Expension Connectors Pow er 5V, 3.3V, USB0 client mode, GPIO...
Weigth TBD
PCB TBD
Power 5/9/ 12 DC
Sitara AM335 2BZCZ8 00
800M hz
Reset Butto n
Boo t Button
Pow er Button
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(c)2014 Jetmobile Pte Ltd
Tableau 1: SecureJet Intelligent Appliance 8.1 feature list
"SecureJet Intelligent Appliance 8.1 - COMPANY CONFIDENTIAL"
Ref. SIA8.1_SRM Rev. B 1.0.0
3.2 Board Component Locations
This section describes the key components on the board. It provides information on their
location and function. Familiarize yourself with the various components on the board.
DC Power is the main DC input that accepts 5V or 9V or 12V DCpower.
Power Button alerts the processor to initiate the power down sequence, 2 LED are
integrated into power button.
10/100 Ethernet are the connection to the LAN1 and LAN2.
Serial Debug is the serial debug port.
USB Host can be connected different USB interfaces such as Wi-Fi, BT, Keyboard, etc.
Extension connector will be used to connect SSD later
BOOT switch can be used to force a boot from the microSD card if the power is cycled on
the board, removing power and reapplying the power to the board.
Reset Button allows the user to reset product with factory setting.
microSD slot is where a microSD card can be installed.
Sitara AM3352BZCZ80 is the processor for the board.
Micron 256MB DDR3L is the Dual Data Rate RAM memory.
TPS65217C PMIC provides the power rails to the various components on the board.
SMSC Ethernet PHY is the physical interface to the network.
Micron eMMC is an onboard MMC chip that holds up to 2GB of data
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"SecureJet Intelligent Appliance 8.1 - COMPANY CONFIDENTIAL"
Ref. SIA8.1_SRM Rev. B 1.0.0
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"SecureJet Intelligent Appliance 8.1 - COMPANY CONFIDENTIAL"
Ref. SIA8.1_SRM Rev. B 1.0.0
4 SECUREJET INTELLIGENT APPLIANCE 8.1 BOARD HIGH
LEVEL SPECIFICATION
This section provides the high level specification of the SecureJet Intelligent Appliance 8.1 board.
4.1 Processor
For the initial release, the board uses the Sitara XAM3359BZCZ processor in the 15x15
package.
4.2 Memory
Described in the following sections are the three memory devices found on the board.
4.2.1 256MB DDR3L
A single 128Mb x16 DDR3L 2Gb (256MB) memory device is used. The memory used is the
MT41K128M1 from Micron. It will operate at a clock frequency of 400MHz yielding an effective
rate of 800MHZ on the DDR3L bus allowing for 1.6GB/S of DDR3L memory bandwidth.
4.2.2 2GB Embedded MMC
A single 2GB embedded MMC (eMMC) device is on the board. The device connects to the MMC1
port of the processor, allowing for 8bit wide access. Default boot mode for the board will be
MMC1 with an option to change it to MMC0, the SD card slot, for booting from the SD card as a
result of removing and reapplying the power to the board. Simply pressing the reset button will
not change the boot mode. MMC0 cannot be used in 8Bit mode because the lower data pins are
located on the pins used by the Ethernet port. This does not interfere with SD card operation
but it does make it unsuitable for use as an eMMC port if the 8 bit feature is needed.
4.2.3 MicroSD Connector
The board is equipped with a single microSD connector to act as the secondary boot source for
the board and, if selected as such, can be the primary boot source. The connector will support
larger capacity microSD cards. The microSD card is not provided with the board. Booting from
MMC0 will be used to flash the eMMC in the production environment or can be used by the user
to update the SW as needed.
4.2.4 Boot Modes
As mentioned earlier, there are four boot modes:
eMMC Boot…This is the default boot mode and will allow for the fastest boot time
and will enable the board to boot out of the box using.
SD Boot…This mode will boot from the microSD slot. This mode can be used to
override what is on the eMMC device and can be used to program the eMMC when
used in the manufacturing process or for field updates.
Serial Boot…This mode will use the serial port to allow downloading of the
software direct. A separate USB to serial cable is required to use this port.
USB Boot…This mode supports booting over the USB port.
Software to support USB and serial boot modes is not provided. Please contact
KWETCH Embedded Systems for support of this feature.
A switch is provided to allow switching between the modes.
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"SecureJet Intelligent Appliance 8.1 - COMPANY CONFIDENTIAL"
Ref. SIA8.1_SRM Rev. B 1.0.0
Holding the boot switch down during a removal and reapplication of power without a
microSD card inserted will force the boot source to be the USB port and if nothing is
detected on the USB client port, it will go to the serial port for download.
Without holding the switch, the board will boot try to boot from the eMMC. If it is
empty, then it will try booting from the microSD slot, followed by the serial port, and
then the USB port.
If you hold the boot switch down during the removal and reapplication of power to the
board, and you have a microSD card inserted with a bootable image, the board will boot
from the microSD card.
NOTE: Pressing the RESET button on the board will NOT result in a change of the
boot mode. You MUST remove power and reapply power to change the boot mode.
The boot pins are sampled during power on reset from the PMIC to the processor.
The reset button on the board is a warm reset only and will not force a boot mode
change.
4.3 Power Management
The TPS65217C power management device is used along with a separate LDO to provide
power to the system. The TPS65217C version provides for the proper voltages required for
the DDR3L and the processor. DDR3L requires 1.35V.
An external LDO TL5209 provides the 3.3V rail for the rest of the board.
4.4 Serial Debug Port
Serial debug is provided via UART0 on the processor via a single 1x6 pin header. In order to
use the interface a USB to TTL adapter will be required. The header is compatible with the one
provided by FTDI and can be purchased for about $12 to $20 from various sources. Signals
supported are TX and RX. None of the handshake signals are supported.
4.5 USB1 Host Port
On the board is a single USB Type A female connector with full LS/FS/HS Host support that
connects to USB1 on the processor. The port can provide power on/off control and up to 500mA
of current at 5V. Under USB power, the board will not be able to supply the full 500mA, but
should be sufficient to supply enough current for a lower power USB device supplying power
between 50 to 100mA.
4.6 Power Sources
The board can be powered from four different sources:
A 12VDC, 9VDC or 5VDC 1A power supply plugged into the DC connector.
A power supply with a USB connector.
The USB port is limited to 500mA by the Power Management IC. It is possible to change the
settings in the TPS65217C to increase this current, but only after the initial boot.
4.7 Reset Button
When pressed during systems boot will reset factory setting.
4.8 Power Button
A power button is provided. This button takes advantage of the input to the PMIC for power
down features. These features include:
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"SecureJet Intelligent Appliance 8.1 - COMPANY CONFIDENTIAL"
Ref. SIA8.1_SRM Rev. B 1.0.0
Interrupt is sent to the processor to facilitate an orderly shutdown to save files and to un-
mount drives.
No sleep mode since the unit works as a LAN switch and the printer would be unreachable.
If you hold the button down the board will power off and the power LED turns off.
If you continue to hold it, the board will power back up completing a power cycle.
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