Atmel AT73C224-EK1 User manual

Chipsmall Limited consists of a professional team with an average of over 10 year of expertise in the distribution
of electronic components. Based in Hongkong, we have already established firm and mutual-benefit business
relationships with customers from,Europe,America and south Asia,supplying obsolete and hard-to-find components
to meet their specific needs.
With the principle of “Quality Parts,Customers Priority,Honest Operation,and Considerate Service”,our business
mainly focus on the distribution of electronic components. Line cards we deal with include
Microchip,ALPS,ROHM,Xilinx,Pulse,ON,Everlight and Freescale. Main products comprise
IC,Modules,Potentiometer,IC Socket,Relay,Connector.Our parts cover such applications as commercial,industrial,
and automotives areas.
We are looking forward to setting up business relationship with you and hope to provide you with the best service
and solution. Let us make a better world for our industry!
Contact us
Tel: [phone] Fax: [phone]
Email & Skype: [email protected]om Web: www.chipsmall.com
Address: A1208, Overseas Decoration Building, #122 Zhenhua RD., Futian, Shenzhen, China
  

6439A–PMAAC–13-Feb-09
AT73C224-EK1 Evaluation Kit
....................................................................................................................
User Guide

AT73C224-EK1 Evaluation Kit User Guide i
6439A–PMAAC–13-Feb-09
Table of Contents
Section 1
Introduction................................................................................................................. 1-1
1.1 Scope................................................................................................................................. 1-1
1.2 AT73C224-EK1 Features................................................................................................... 1-1
1.3 Deliverables ....................................................................................................................... 1-2
Section 2
Getting Started ........................................................................................................... 2-1
2.1 Electrostatic Warning ......................................................................................................... 2-1
2.2 Requirements..................................................................................................................... 2-1
2.3 PC System Requirements.................................................................................................. 2-1
2.4 Instructions......................................................................................................................... 2-2
2.4.1 To Start the AT73C224-EK1 Evaluation Board ................................................... 2-2
2.4.2 To turn off the AT73C224-EK1 Evaluation Board................................................ 2-2
2.5 Block Diagram.................................................................................................................... 2-3
2.6 Power Supply..................................................................................................................... 2-4
2.6.1 Transformer ......................................................................................................... 2-4
2.6.2 Power-up By A Battery ........................................................................................ 2-5
2.7 Dynamic/Static Modes ....................................................................................................... 2-7
2.7.1 Dynamic Mode/Communication Interface Set Up................................................ 2-8
2.7.2 Static Mode........................................................................................................ 2-11
2.8 Real Time Clock (RTC).................................................................................................... 2-13
2.9 On-Board Output Signals................................................................................................. 2-14
2.9.1 VBG ................................................................................................................... 2-14
2.9.2 CK32 - RTC Output Clock ................................................................................. 2-14
2.9.3 VCAPP and VCAPN .......................................................................................... 2-14
2.9.4 VINT .................................................................................................................. 2-15
2.9.5 DL1 .................................................................................................................... 2-15
2.9.6 SW2................................................................................................................... 2-15
2.9.7 Voltage Measurements...................................................................................... 2-16
2.9.8 Current Measurements ...................................................................................... 2-16
Section 3
AT73C224-EK1 Software Interface ............................................................................ 3-1
3.1 Software Panel................................................................................................................... 3-1

Table of Contents (Continued)
ii AT73C224-EK1 Evaluation Kit User Guide
6439A–PMAAC–13-Feb-09
Section 4
Technical Specifications............................................................................................. 4-1
Section 5
PCB Layout ................................................................................................................ 5-1
Section 6
Schematics................................................................................................................. 6-1
Section 7
Revision History ......................................................................................................... 7-1
7.1 Revision History ................................................................................................................. 7-1

AT73C224-EK1 Evaluation Kit User Guide 1-1
6439A–PMAAC–13-Feb-09
Section 1
Introduction
Congratulations on your purchase of the AT73C224-EK1. It is designed to give designers a quick start to
evaluate power management capability of the AT73C224 Analog Companion Power Management Unit
and for prototyping and testing of new designs.
1.1 Scope
This document describes the AT73C224-EK1 Evaluation Kit dedicated to products based on the
AT73C224 core. This board is designed to allow an easy evaluation of the products using demonstration
software.
To increase its demonstration capabilities, this standalone board has two serial interfaces (Two-wire
Interface (TWI) and Serial Peripheral Interface (SPI) via Parallel Port).
This User Guide acts as a general getting started aid as well as a complete technical reference for
advanced users.
This document uses as reference, the AT73C224 Datasheet, literature number 6266, available at
www.atmel.com.
Typical Applications
DECT Phones
WLAN Portable Devices
Multimedia Devices
Portable Music Players
1.2 AT73C224-EK1 Features
The AT73C224-EK1 provides the following features:
Power Supply
– External Battery Connection
On-board Resources
– DC/DC Step-up Converter (BOOST) 3.3V to 5.0V, 1A, up to 90% Efficiency. Can be used as
BUCK/BOOST in SEPIC Configuration,
– DC/DC Step-down (BUCK) Synchronous Converter 0.9V to 3.4V, 500 mA, up to 90% Efficiency,
Pulse Skipping Capabilities,
– Two Low-Drop-Out Regulators: LDO3 & 4: 1.4V to 1.8V, 2.5V to 2.8V (100 mV Step), 3V, 3.3V
200 mA,
– Ultra-low Power Real-Time Clock and Backup Battery Management

1-2 AT73C224-EK1 Evaluation Kit User Guide
6439A–PMAAC–13-Feb-09
• 2.5V RTC LDO for Backup Battery Charging
• 32 kHz Crystal RTC Oscillator (1µA)
• RTC Circuit for Time and Date Information
– Activation of the Power Management Modules via Dedicated Enable Pin,
– Automatic Start-up Sequences, Power OK Signal Indicating when Start-up is Completed,
– Activation and Control of the Power Management Modules in Dynamic Mode (via SPI or TWI) or
in Static Mode
– ITB Signal Indicating the Beginning of Shutdown
– Very Low Quiescent Current
– Minimum External Components Count
– Supply from 3V to 5.5V (typ: Li-Ion Battery 3V to 4.2V)
– Available in a 32-pin QFN 5x5 mm Package with Downbond Pin
On-board Buttons
– BUCK, LDO3 and LDO4 Supply Selection,
– Digital Interface Power Selection
– TWI/SPI Selection
– Manual/Dynamic Mode Selection
– Manual Output Power enabling
– GPIO Enable
1.3 Deliverables
The AT73C224-EK1 package contains the following items:
An AT73C224-EK1 Board
One CD-ROM containing product software, User Guide and a full Datasheet
25-pin standard parallel cable

AT73C224-EK1 Evaluation Kit User Guide 1-3
6439A–PMAAC–13-Feb-09
Figure 1-1. AT73C224-EK1 Top View (card photo)
The AT73C224 is located in the center of the AT73C224-EK1 on the Components Side.

1-4 AT73C224-EK1 Evaluation Kit User Guide
6439A–PMAAC–13-Feb-09
Figure 1-2. AT73C224-EK1 Components Side
R
1
125
25
K
C31
C30
VBAT
SW6
SW4
C22
SW5
SW3
C23
VO3
GND
J7
Q2
R5
D1
VO2
TP11
VO3
C4
VDD0
J1
C28 C27
D1
C21
U3
TWI
VO4
VO1
VINT
EN
VBAT
C13
U2
VBAT
S.Conf
C24
VDD3
C14
C1
GND
J4
C5
C20
C7
ITB
C11
POK
U1
D4
VO1
VO1
C9
C12
VO1
R4
L1
L3
VO2
EN
C16
X1
TP10
Vbg
F.Stat
VO1
Man Auto
SPI
A
VO1
VBAT
C15
D2
C26
Q1
GPIO
R2
R6
L2
C17
MC1
VO3
LOAD
J17
VO4
VDD2
C6
VBAT
C2
VO1
VO2
C8
VO4
C3
R8
R3
U4
Measurements
VCAPP
J14
R7C29
R9
J20
C19C18
DL1
TP9
TP15
K
D1
SW2
VO2
VCAPN
C25
CK32
TP8
VO4
D4
J88
SW7
TP7
TP4
P2
J21
P3
J87
SW2 SW1
P1
J6
TP14
J12
OFF
P4
J13
D3
AT73C224-EK1
VBAT_LDORTC
J2
VDDIO
D2
R10
D2
VDD4
C10
VBK
ON
D3

AT73C224-EK1 Evaluation Kit User Guide 2-1
6439A–PMAAC–13-Feb-09
Section 2
Getting Started
2.1 Electrostatic Warning
The AT73C224-EK1 evaluation board is shipped in protective anti-static packaging. The board must not
be subjected to high electrostatic potentials. A grounding strap or similar protective device should be
connected when handling the board. Avoid touching the components, pins or any metallic element.
2.2 Requirements
In order to set up the AT73C224-EK1 evaluation kit the following items are needed:
1. The AT73C224-EK1 evaluation board itself.
2. DC output power source:
– Transformer 5.5V to 9V DC max (minimum 200 mA is required)
– External power supplies and/or battery (typ: Li-Ion Battery 3V to 4.2V) [see Table 2-2, “Battery
Types,” on page 2-5]
3. PC station with a standard D-Type 25-pin standard communication port
2.3 PC System Requirements
For correct operation of the AT73C224-EK1 evaluation board, the minimum hardware and software PC
requirements are:
Intel®Pentium®II processor
64 MBytes RAM
70 MBytes free hard disk space (for AT73C224 Evaluation Board software installation). Software
delivered on the CD with the Evaluation Board can also be found on the AT73C224-EK1 web page.
Windows® NT/2000/XP
Parallel port (COM port)

2-2 AT73C224-EK1 Evaluation Kit User Guide
6439A–PMAAC–13-Feb-09
2.4 Instructions
2.4.1 To Start the AT73C224-EK1 Evaluation Board
Install «DLPORTIO.exe» from the provided software CD and restart your PC.
Install the AT73C224 software by clicking on setup.exe.
If the software is downloaded from the Atmel web site, it is necessary to first install the National
Instrument Labview software (LabVIEW8.0.1RuntimeEngine).
Configure the on-board jumpers and switches as described in the relevant paragraphs:
1. Section 2.6 ”Power Supply” on page 2-4
2. Section 2.7 ”Dynamic/Static Modes” on page 2-7
3. Section 2.8 ”Real Time Clock (RTC)” on page 2-13
Connect the transformer.
Connect the parallel port.
Connect Input and Output devices.
To launch the AT73C224 Test interface software, click on AT73C224.exe.
2.4.2 To turn off the AT73C224-EK1 Evaluation Board
Click on the Shutdown button on the AT73C224 software
Disconnect the chosen power supply

AT73C224-EK1 Evaluation Kit User Guide 2-3
6439A–PMAAC–13-Feb-09
2.5 Block Diagram
Figure 2-1. AT73C224-EK1 Block Diagram
BOOST
LDO3
LDO4
BUCK
SPI/TWI Back-up Battery
Charger and
RTC Supply
SPI/TWI
Selection
Battery (VBAT)
AT73C224
AT73C224-EK1
VO1
POK
ITB
VO1
VO3
VO4
VO2
VBK
Active/Static
Selection
Manual
Switches
Port
Parallel
EN
POK ITB/RDY
SW3
SW2 SW1
Backup
Battery
Shifter
Level
VO1
VO1/VO2
J13
J12
J16
SW4
SW6
SW5

2-4 AT73C224-EK1 Evaluation Kit User Guide
6439A–PMAAC–13-Feb-09
2.6 Power Supply
The AT73C224-EK1 is supplied with the voltage sources shown below:
Figure 2-2. Power Supply Diagram
2.6.1 Transformer
The transformer is used to power the communication level shifter. Connect it when using the software.
The power supply voltage is regulated with on board circuitry. Input voltage on this connector should be
included between 5.5V and 9V.
Note: This power supply input is NOT protected against polarization inversion.
Figure 2-3. Transformer Connector (J4)
BOOST
LDO3
LDO4
BUCK
Back-up Battery
Charger and
RTC Supply
Battery (VBAT)
AT73C224
AT73C224-EK1
VO1
VO1
VO3
VO4
VO2
VBK
Backup
Battery
U4
Regulator
Level
Shifter
5V
J4
Transformer
5.5V to 9V
P2
P1
GND
VO1
J13
J12
J16
VO2
J2
VO1
Table 2-1. Transformer Supply Voltage
Power Supply Source Min Max Unit
Transformer (minimum 200 mA is required) 5.5 9 V
K
C21
J4
C20
R3
Transformer
Input

AT73C224-EK1 Evaluation Kit User Guide 2-5
6439A–PMAAC–13-Feb-09
2.6.2 Power-up By A Battery
The AT73C224 can work with several types of battery as an external source:
2-cell Disposable Alkaline AA or AAA
2-cell NiMH/NiCd
1-cell Rechargeable Li-Ion
The two-cell battery types feature a voltage range of 1.8V - 3.2V, while the Li-Ion battery features
a range of 3.0V - 4.2V.
In order to power-up the card by a battery do the following:
1. Connect the Battery (+) to the Battery pad and Battery (-) to GND pad.
2. Close J17 and J5.
Figure 2-4. Operating the AT73C224-EK1 With a Battery
3. Configure the input voltages by closing the following jumpers (J16, J12, J13, J2 and J14):
Table 2-2. Battery Types
Battery Type Remarks
Battery Voltage Range
UnitsMin Max
1-cell Rechargeable Li-Ion Factory fused 3.0 4.2 V
2-cell Disposable Alkaline AA or AAA 1.8 3.2 V
2-cell NiMH/NiCd
Table 2-3. On Board Supply Selection Jumpers
LDO N°
Selected Input Voltage
Vbat VO1 VO2 VO4
VDD2 (J16) Pins 1&2 Pins 2&3 ----- -----
VDD3 (J12) Pins 1&2 Pins 2&3 ----- -----
VDD4 (J13 & J2) Pins 1&2 (J13) Pins 2&3 (J13) and
Pins 1&2 (J2)
Pins 2&3 (J13) and
Pins 2&3 (J2) -----
VDDIO (J14) Pins 1&2 Pins 3&4 ----- Pins 5&6
C24
GND
J17
VBAT
C25
P2
P1
Battery GND
J17

2-6 AT73C224-EK1 Evaluation Kit User Guide
6439A–PMAAC–13-Feb-09
Figure 2-5. On Board Supply Jumpers
4. Push once on SW1 to enable start-up of the AT73C224.
Figure 2-6. Enable Push Button (SW1)
VBAT
GND
C4
VDD0
VO4
VBAT
C13
VBAT
VDD3
C14
C1
C5
C7
C11
U1
VO1
C9
C12
VO1
L1
L3
VO2
C16
X1
Vbg
VO1
VO1
VBAT
C15
Q1
R2
L2
C17
VO3
LOAD
VDD2
C6
C2
VO1
VO2
C8
VO4
C3
VCAPP
J14
J20
C19C18
DL1
TP15
D1
SW2
VCAPN
CK32
J21
P3
TP14
J12
P4
J13
VBAT_LDORTC
J2
VDDIO
R10
VDD4
C10
J16
J5
1
1
1
1
2
6
1
J7
VO1
EN
ITB POK
EN
GPIO
TP8
TP7
SW2 SW1
Enable Push button

AT73C224-EK1 Evaluation Kit User Guide 2-7
6439A–PMAAC–13-Feb-09
2.7 Dynamic/Static Modes
The AT73C224 supply management is performed in Dynamic or Static mode (Dynamic for SPI and TWI
protocols).
The Dynamic/Static modes are factory fused and should be configured by each assembled AT73C224
version.
Please consult the following table for the available version.
Dynamic/Static modes selection is done by setting SW6 according to the requested operation.
Figure 2-7. Dynamic Mode (SW6)
Figure 2-8. Static Mode (SW6)
Table 2-4. Available AT73C224 version
Part Number Management Mode
AT73C224-A Dynamic
AT73C224-B Dynamic
AT73C224-C Dynamic
AT73C224-D Dynamic
AT73C224-E Dynamic
AT73C224-F Static
AT73C224-G Static
AT73C224-H Static
SW6
D1
D4
Man AutoA
D3
D2
SW6
D1
D4
Man AutoA
D3
D2

2-8 AT73C224-EK1 Evaluation Kit User Guide
6439A–PMAAC–13-Feb-09
2.7.1 Dynamic Mode/Communication Interface Set Up
These boards enable controlling the AT73C224 via SPI/TWI through the parallel port (J1).
If the user wants to program the AT73C224 directly with a host extension, J6 can be removed and the
Communication Port can be driven directly.
Figure 2-9. Direct Programing
The SPI/TWI communication protocols are described in the AT73C224 data sheet. In all cases of using
the SPI/TWI interfaces through the parallel port, a transformer needs to be connected to J4, and J88 and
J6 jumpers should be closed.
Figure 2-10. Communication Port and Jumpers Set Up (J1)
D1
D4
J6
D2
D3
1
7
5
3
SCK/TWCK
SDO/TWD
SDI
SCS
1
125
25
C31
C30
SW6
SW4
C22
SW3
Q2
R5
D1
J1
C28 C27
D1
U3
TWI
VINT
U2
VDD3
D4
R4
Vbg
Man Auto
SPI
A
D2
C26
R6
VCAPP
R7C29
K
VCAPN
D4
J88
SW7
TP4
J6
J12
D3
D2
R10
D2
D3
1
Parallel
Port
7
3

AT73C224-EK1 Evaluation Kit User Guide 2-9
6439A–PMAAC–13-Feb-09
2.7.1.1 TWI Set Up
1. Close J6 and J88 jumpers.
2. Set SW4 switches to TWI position.
3. Set SW7 switch according to the requested TWI address (48 or 49).
4. Set SW6 to Auto mode (Dynamic).
5. Connect the transformer.
6. Connect the parallel port.
Figure 2-11. TWI Set Up With Address 48
Figure 2-12. TWI Set Up With Address 49
C31
SW4
C22
C23
D1
TWI
VINT
VDD3
R4
SPI
R8
VCAPP
R9
VCAPN
D4
J88
SW7
TP4
J6
J12
D2
D3
1
7
3
SW6
D1
D4
Man AutoA
D3
D2
SW4
SW6
J88
J6
SW7
C31
SW4
C22
C23
D1
TWI
VINT
VDD3
R4
SPI
R8
VCAPP
R9
VCAPN
D4
J88
SW7
TP4
J6
J12
D2
D3
1
7
3
SW6
D1
D4
Man AutoA
D3
D2
SW4
SW6
J88
J6
SW7

2-10 AT73C224-EK1 Evaluation Kit User Guide
6439A–PMAAC–13-Feb-09
2.7.1.2 SPI Set Up
1. Close J6 and J88 jumpers.
2. Set SW4 switches to SPI position.
3. Set SW6 to Auto mode (Dynamic).
4. Connect the transformer.
5. Connect the parallel port.
Figure 2-13. SPI Set Up
C31
SW4
C22
C23
D1
TWI
VINT
VDD3
R4
SPI
R8
VCAPP
R9
VCAPN
D4
J88
SW7
TP4
J6
J12
D2
D3
1
7
3
SW6
D1
D4
Man AutoA
D3
D2
SW4
SW6
J88
J6

AT73C224-EK1 Evaluation Kit User Guide 2-11
6439A–PMAAC–13-Feb-09
2.7.2 Static Mode
When the AT73C224-EK1 is established in Static Mode, the digital interface signals, D1 to D4, directly
drive the enable of the four supplies. There are 3 Static Modes as follows:
2.7.2.1 Fully Static Mode
In order to establish Fully Static Mode do the following:
1. Set SW6 to Manual Mode.
2. Set SW3 to Fully Static Mode.
Figure 2-14. Fully Static Mode
2.7.2.2 Configurable Static Mode
In order to establish Configurable Static Mode do the following:
1. Set SW6 switches to Manual Mode.
2. Set SW3 to Static Mode.
3. Set SW5 switches to enable the correct output voltage as required.
Figure 2-15. Configurable Static Mode
SW6
SW3
Q2
R5
D1
S.Conf
D4
EN
Vbg
F.Stat
Man AutoA
D4
D3
R10
D2
SW6
SW3
25
25
SW6
SW5
SW3
J7
Q2
D1
VO2
VO3
EN
S.Conf
ITB POK
D4
VO1
EN
Vbg
F.Stat
Man AutoA
GPIO
VO4
SW2 SW1
OFF
D3
D2
ON
Set SW5 switches
for each output voltage
SW6
SW3

2-12 AT73C224-EK1 Evaluation Kit User Guide
6439A–PMAAC–13-Feb-09
2.7.2.3 GPIO Mode (Microcontroller Controlled)
In order to establish GPIO Mode do the following:
1. Connect the microcontroller I/Os as required to D1 - D4 on J6 (see Figure 2-9 on page 2-8)
2. Connect POK and ITB signals to the microcontroller.
Figure 2-16. GPIO Mode Architecture
3. Set SW6 to Manual Mode.
4. Set SW3 to Fully Static Mode.
5. Connect ITB/RDY and POK (on J7) to µC.
Note: If ITB/RDY is not connected to the microcontroller, it can be established manually by press-
ing once on the push button, SW2.
Figure 2-17. GPIO Mode
D1
D2
D3
D4
ITB/RDY
POK
µC
I/O
I/O
I/O
I/O
I/O
RST or NMI
AT73C224
C30
SW6
SW4
SW3
J7
Q2
R5
D1
C27
D1
U3
EN
S.Conf
VDD3
ITB POK
D4
EN
Vbg
F.Stat
Man AutoA
GPIO
R6
VCAPP
VCAPN
D4
SW2 SW1
J6
D3
D2
R10
D2
D3
Press once on SW2
to enable ITB/RDY