Ambient LockitModule ACN-LM User manual

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LockitModule
ACN-LM
Integrators Manual

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Table of Contents
1 Introduction ...................................................................................................................................................................... 3
2 Specifications .................................................................................................................................................................... 3
2.1 Physical Dimensions ................................................................................................................................................ 3
2.2 Block Diagram ......................................................................................................................................................... 4
2.2.1 Local Oscillators ............................................................................................................................................. 4
2.2.2 MCU............................................................................................................................................................... 4
2.2.3 SPI Flash ......................................................................................................................................................... 4
2.2.4 Timecode and Sync ........................................................................................................................................ 4
2.2.5 Control ........................................................................................................................................................... 4
2.2.6 ACN RF ........................................................................................................................................................... 4
2.2.7 Board Edge Connector ................................................................................................................................... 4
2.2.8 ACN RF Connector ......................................................................................................................................... 5
3 Board Edge Connector Pinout........................................................................................................................................... 6
3.1 Power ...................................................................................................................................................................... 7
3.2 Aux DC Out .............................................................................................................................................................. 7
3.3 System debug signals .............................................................................................................................................. 7
3.4 Communication Interfaces ...................................................................................................................................... 8
3.5 LEDs ......................................................................................................................................................................... 9
3.6 Buttons .................................................................................................................................................................. 10
3.7 Timecode .............................................................................................................................................................. 10
3.8 Sync ....................................................................................................................................................................... 11
3.9 GPS PPS ................................................................................................................................................................. 11
3.10 Clock ...................................................................................................................................................................... 11
3.11 GPIOs .................................................................................................................................................................... 11
3.12 Analog inputs ........................................................................................................................................................ 12
3.13 UART lines ............................................................................................................................................................. 12
3.14 SPI lines ................................................................................................................................................................. 13
3.15 I²C Interface .......................................................................................................................................................... 13
4 Regulatory Requirements ............................................................................................................................................... 13
4.1 EU (ETSI) ................................................................................................................................................................ 13
4.2 USA (FCC) .............................................................................................................................................................. 13
4.3 Canada (IC) ............................................................................................................................................................ 14
4.4 Japan ..................................................................................................................................................................... 15
4.5 Various .................................................................................................................................................................. 15
5 Contact Information, Support ......................................................................................................................................... 17

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1 Introduction
The LockitModule ACN-LM offers to implement timecode and sync capabilities plus metadata
processing based on a modular NVMe form factor plug in card. It features industry standards such as
SMPTE 12M, MIDI timecode, ITU/REC tri-level video sync, audio wordclock and multiple pulse per
frame camera shutter sync. The module also seamlessly integrates Ambients ACN, an IEEE802.15.4
based, wireless sync and metadata network.
2 Specifications
Name
LockitModule ACN
-
LM
Module dimension
26 mm (W) x 30 mm (L)
Temperature range
0 °C to 70 ° C
Weight
~3g
Power supply voltage range
3.15 to 3.45 V (3.3 V +/
-
5%)
Board edge connector
M.2 (NGFF) key E
Host interfaces
USB 1.1, UART
AC
N RF
Frequency band: 2400MHz
-
2483,5MHz, ch. bandwith 2MHz, ch.
spacing 5MHz, ch. 11 through 26 of IEEE802.15.4 2.4. Declared
output power: 8.3 dBm
2.1 Physical Dimensions

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2.2 Block Diagram
2.2.1 Local Oscillators
The circuitry is driven by 3 frequencies, , the reference oscillator, a tunable VCTCXO @ 19.2 MHz with
.1 ppm frequency stability in the temperature range from -30 °C to +70 °C and auxiliary frequencies
@ 32.768 KHz and 16 MHz.
2.2.2 MCU
STM32L4R5xx microcontroller.
2.2.3 SPI Flash
For various tasks like firmware update, parameter storing and event logging.
2.2.4 Timecode and Sync
Main signal in-and outputs to sync with external equipment
2.2.5 Control
Access to the units parameters, configuration and status indication.
2.2.6 ACN RF
The ACN sync and metadata network builds on the IEEE802.15.4 LR-WPAN standard in the 2.4GHz,
approved for on globally license free use. Channels are fixed and can be selected using the API. If
desired, the RF part can also be completely disabled.
ACN Channel Off 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
Freq. (MHz) RF Muted 2405 2410 2415 2420 2425 2430 2435 2440 2445 2450 2455 2460 2465 2470 2475 2480
2.2.7 Board Edge Connector
All signal and control lines to operate the LockitModule are through a single type “E” NGFF M.2
connection. Note that the pinout is proprietary and not compatible with other interfaces using the
same keying.
MCU
Board Edge Connector
M.2 NGFF, type “E” Key
Timecode and Sync
LTC, TLS, Wordclock, PPF,
PPS
Local Osci
l
lators
VCTCXO 19.2 MHz
MEMS 32.768 kHz
MEMS
16 MHz
ACN RF
Unit
IEEE 802.15.4
2.405 - 2.480 GHz
SPI Flash
32 MB, 256 Mbit
Control
UART, USB, GPIO
ACN RF Connector
U.FL (Ipex)

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2.2.8 ACN RF Connector
“ANT” carries the ACN IEEE802.15.4 RF signal via a standard U.FL socket. If RF output is not disabled
permanently with no option of alteration through the user this connection must be properly
terminated with a compliant 50 Ohms IPEX lead and suited antenna with max 2dBi in the according
range.

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3 Board Edge Connector Pinout
Signal
Type
Pin
Pin
Type
Signal
VCC PWR 1 2
Ground
GND
VCC PWR 3 4
Ground
GND
SWCLK * Int. 5 6 O LED_Red
SWDIO * Int. 7 8 O LED_Green
TRACESWO * Int. 9 10 I TC_In
N_Reset * Int. 11 12 NC Reserved
N_StandBy * Int. 13 14 O Wordclock
USB Data+ I/O 15 16 O TC_Out_1 (buffered)
USB Data- I/O 17 18 I UART2_RX (RCP)
USB VBUS PWR 19 20 O UART2_TX (RCP)
UART1_RX (ACN) I 21
22
NC
NC
Key
Reserved
UART1_TX (ACN) O 23
Key 25 24 Key
Key 27 26 Key
Key 29 28 Key
Key 31 30 Key
GPIO0 I/O 33 32 O Clock
PPF O 35 34 I/O GPIO1
Genlock (TLS) O 37 36 I/O GPIO3
TC_Out2 (unbuffered) O 39 38 I Button_Green
GPS_PPS * Int. 41 40 I Button_Red
SPI_CLK * Int. 43 42 I Button_PWR
SPI_MOSI * Int. 45 44 O LED Blue
SPI_MISO * Int. 47 46 * Int. DisableChg
SPI_NSS! * Int. 49 48 * Int. Charging
I²C_1_SCL * Int. 51 50 * Int. PwrGood
I²C_1_SDA * Int. 53 52 * Int. OLED
I²C_2_SCL * Int. 55 54 * Int. OLED_RST
I²C_2_SDA * Int. 57 56 * Int. GPIO10
UART3_TX O 59 58 * Int. GPIO11
UART3_RX I 61 60 * Int. GPIO12
UART3_RTS 63 62 * Int. GPIO13
UART3_CTS 65 64 Aux DC Out 1V8
UART4_TX O 67 66 * Int. Reserved
UART4_RX I 69 68 * Int. Reserved
UART5_TX O 71 70 * Int. Reserved
UART5_RX I 73 72 * Int. Reserved
VBAT PWR 75 74
Ground
GND
Int. *: exclusive for internal use

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3.1 Power
The module requires only one single power supply voltage with 3.3 V.
An optional extra input (VBAT) can be used to supply the internal RTC of the microcontroller
Pin
Name
Type
Description
1, 3
VCC
PWR
Power input
, 3.3V DC
stabilized, rated 25
0mA min
.
2, 4, 74
GND
Ground
Signal and power g
round
64
1V8
PWR
Regulated DC
output
.
M
ax.
load
50 mA
74
VBAT
PWR
Power input for
internal
RTC
2.2
-
5.5V DC,
max. 5
µA.
Exemplary implementation of a RTC backup battery
3.2 Aux DC Out
Pin
Name
Type
Description
64
1V8
Power
O
utput
for external Pull
-
Up resistor
s
. Max. load 50 mA
3.3 System debug signals
Pin
Name
Type
Description
5
SWCLK
* Int.
Serial Wire Clock
7
SWDIO
* Int.
Serial Wire Data In
-
/Output
9
TRACESWO
* Int.
Serial Wire Trace Output
11
NRST
* Int.
Reset,
low active, connect to pin 64 via ext.
10K resistor
13
NSTB
* Int.
Standby,
low active
NRST may be used for a hard reset of the microcontroller by momentary pulling to ground. If not
connected to other logic tie to 1.8V (available on pin 64) with a 10K resistor to prevent accidental
reset.

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Exemplary implementation of pull-up resistor
3.4 Communication Interfaces
2 physical host interfaces, UART and USB HID, are available to control and inquire status of the
module. The API documentation is available as separate document.
UART
Pin
Name
Type
Description
21
UART_RX
D
3.3V TTL, 5V tolerant
23
UART_TX
D
3.3V TTL
The serial 3V TTL UART1 interface is the most preferable interface for low level connection. A level
shifter will be required for communicating over RS232.
USB
Pin
Name
Type
Descripti
on
15
USB_D_P
D
USB data line, full speed
17
USB_D_N
D
USB data line, full speed
19
USB_VBUS
PWR
5V +/
-
5%, source to be in compliance with BC 1.2
For host systems with USB HID support this interface offers higher data rates and additionally makes
the timecode available as MIDI device. Controlling the device is possible via a terminal program using
the same API as over UART. Having the USB connection accessible when not in use for configuration
offers easy updating of the firmware using the readily available LockitToolbox utility.

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3.5 LEDs
Pin
Name
Type
Description
6
LED Red
O
Status indicator, 3.3V
, active low
8
LED Green
O
Status indicator, 3.3V
, active low
44
LED Blue
O
Status indicator, 3.3V
, active low
RGB LED outputs allow to visualize the status of generator and ACN activity. It is strongly
recommended to connect LEDs for debugging and optimum user experience.
Exemplary implementation of an RGB LED for status display

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3.6 Buttons
Pin
Name
Type
Description
38
Button
Green
I
Momentary input
40
Button
Red
I
Momentary input
42
Button
Pwr
I
Momentary input
Exemplary implementation using momentary switches
3.7 Timecode
Pin
Name
Type
Description
10
LTC In
I
1.8
–
5V
14
Wordclock
O
3.3V TTL
16
LTC Out
O
Buffered output, variable from mic level t
o 3.3V TTL max.
39
LTC Out 2
O
1.8V TTL
Timecode is available on 2 pins of the module. Pin 39 supplies 1.8V logic signal for internal use. Pin 16
gives the option to gradually reduce the level from 3V TTL down to mic level to adapt the signal to
different requirements. This signal can directly be used to jam sync with external equipment without
additional circuitry.

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LTC_OUT2 on pin 39 is a direct connection to the processor and optimized for direct internal
connection. When made available for external access we recommend a current limiting in line
resistor, DC decoupling and tie to GND for defined DC state.
Exemplary circuit for external use of LTC_OUT2
3.8 Sync
Pin
Name
Type
Description
14
Wordclock
O
Wordclock audio, 48/96/192KHz selectable,
3.3V TTL
3
5
PPF
O
Pulse
-
Per
-
Frame output
, 1
-
4 x Proj. FPS selectable
, 3.3V
TTL
37
TLS
Tri
-
level sync output, 1080p, i/Psf @ project frame rate
selectable, dynamic load impedance signal matching
Pin37 delivers an ITU/REC tri level video sync signal at project frame rate selectable in either
1080i/PsF or 1080P that can be matched in level to drive one or two 75 Ohm targets. For one sync
connection adding an inline resistor of 75 Ohms is required, to drive two in parallel 37.5 Ohms.
3.9 GPS PPS
Pin
Name
Type
Description
41
GPS PPS
Int
Optional
GPS
PPS input
, reserved for internal use
3.10 Clock
Pin
Name
Type
Description
32
Clock Out
O
19.2 MHz
, 1.8V TTL
3.11 GPIOs
Pin
Name
Type
Description
33
GPIO0
I/O
34
GPIO1
I/O
35
GPO2
O
36
GPIO3
I/O
44
GPIO4
I/O

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46
GPIO5
I/O
48
GPIO6
I/O
50
GPIO7
I/O
52
GPIO8
I/O
54
GPIO9
I/O
56
GPIO10
I/O
58
GPIO11
I/O
60
GPIO12
I/O
62
GPIO13
I/O
Reserved for internal use
3.12 Analog inputs
4 general purpose analog inputs, with firmware dependent functionality:
Pin
Name
Type
Description
Note
66
AI1
Analog
Analog input 1. Input range: 0 to 1.8 V
reserved for internal use
68
AI2
Analog
Analog input 2. Input range: 0 to 1.8 V
reserved for internal use
70
AI3
Analog
Analog input 3. Input range: 0 to 1.8 V
re
served for internal use
72
AI4
Analog
Analog input 4. Input range: 0 to 1.8 V
reserved for internal use
reserved for internal use
3.13 UART lines
Pin
Name
Type
Description
18
UART2 RX
I
Receiver input
,
3.3
V logic
,1.8 V logic
, 5V tolerant
20
UART2 TX
O
Tra
nsmitter output
,
,
3.3
V logic
UART2 is permanently assigned for native support of RED Digital Cinemas® RCP for control and
metadata.
Pin
Name
Type
Description
59
UART3 TX
O
Transmitter output
,1.8 V logic
61
UART3 RX
I
Receiver input
,1.8 V logic
, 5V to
lerant
63
UART3 RTS
O
RTS output
,1.8 V logic
65
UART3 CTS
I
CTS input
,1.8 V logic
, 5V tolerant
Reserved for internal use
Pin
Name
Type
Description
67
UART4 TX
O
Transmitter output
,1.8 V logic
69
UART4 RX
I
Receiver input
,1.8 V logic
, 5V tolerant
Pipelines a serial signal from UART or USB host control. Please contact Ambient for more
information.
Pin
Name
Type
Description
71
UART5 TX
O
Transmitter output
,1.8 V logic
73
UART5 RX
I
Receiver input
,1.8 V logic
, 5V tolerant
Reserved for internal use

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3.14 SPI lines
Pin
Name
Type
Description
43
SPI CLK
O
SPI clock
,1.8 V logic
45
SPI MOSI
O
SPI master output
,1.8 V logic
47
SPI MISO
I
SPI master input
,1.8 V logic
, 5V tolerant
49
SPI NSS1
O
SPI slave select
,1.8 V logic
Reserved for internal use
3.15 I²C Interface
Pin
Name
Type
Description
51
I²C 1 SCL
1.8V TTL
53
I²C 1 SDA
1.8V TTL
55
I²C 2 SCL
1.8V TTL
57
I²C 2 SDA
1.8V TTL
Reserved for internal use/OLED display.
4 Regulatory Requirements
4.1 EU (ETSI)
The Ambient LockitModule ACN-LM is conform for use in European Union countries. If the module is
incorporated into a product, the manufacturer must ensure the compliance of the final product to the
European harmonized EMC and low-voltage/safety standards. A Declaration of Conformity must be
issued for each of these standards and kept on file as described in Annex II of the R&TTE Directive. The
manufacturer must maintain a copy of the module documentation and ensure the final product does
not exceed the specified power ratings, antenna specifications, and/or installation requirements as
specified in the user manual. If any of these specifications are exceeded in the final product, a
submission must be made to a notified body for compliance testing to all required standards. The CE
marking must be affixed to a visible location at the OEM product. The CE mark shall consist of the
initials "CE" taking the following form:
•If the CE marking is reduced or enlarged, the proportions must be respected.
•The CE marking must have a height of at least 5 mm except where this is not possible on account of
the nature of the apparatus.
•The CE marking must be affixed visibly, legibly, and indelibly.
More detailed information about CE marking requirements can be found at "DIRECTIVE 1999/5/EC OF
THE EUROPEAN PARLIAMENT AND OF THE COUNCIL" on 9 March 1999 at section 12.
4.2 USA (FCC)
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:

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(1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation
FCC §15.105 (b):
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reason-able protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be deter-mined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
o Reorient or relocate the receiving antenna.
o Increase the separation between the equipment and receiver.
o Connect the equipment into an outlet on a circuit different from that to which the Receiver is
connected.
o Consult the dealer or an experienced radio/TV technician for help.
FCC notes for a host subject to certification
The end device must be labeled with:
Contains FCC ID: PDZ-LM
For a host device assembled with the certified module and subject to 47 CFR Part 15 verification of
class A digital devices, the following statements have to be included in the user manual and the host
device has to be labelled as noted below.
If the host device is subject to other authorization procedures or parts the appropriate requirements
of these authorization procedures or parts apply.
Modification of equipment
The instruction manual of the host shall include the following statement:
Changes or modifications made to this equipment not expressly approved by the party responsible for
compliance may void the FCC authorization to operate this equipment.
Information to the user
The instruction manual of the host shall include the following statement
4.3 Canada (IC)
This device complies with Industry Canada’s license-exempt RSS Standard(s). Operation is subject to
the following two conditions:
(1) This device may not cause interference; and

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(2) This device must accept any interference, including interference that may cause undesired
operation of the device.
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts
de licence. L’exploitation est autorisée aux deux conditions suivantes:
1) l’appareil ne doit pas produire de brouillage;
2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est
susceptible d’en compromettre le fonctionnement.
The end device must be labeled with:
Contains IC: 27202-LM
4.4 Japan
当該機器には電波法に基づく、技術基準適合証明等を受けた特定無線設備を装着している。
This equipment contains specified radio equipment that has been certified to the Technical
Regulation Conformity Certification under the Radio Law.
4.5 Various
Special accessories
Where special accessories such as shielded cables and/or special connectors are required to comply
with the emission limits, the instruction manual shall include appropriate instructions on the first page
of the text describing the installation of the device.
Simultaneous transmission
When the host product supports simultaneous-transmission operations the host manufacturer needs
to check if there are additional RF exposure filing requirements due to the simultaneous
transmissions. When additional application filing for RF exposure compliance demonstration is not
required (e. g. the RF module in combination with all simultaneously operating transmitters complies
with the RF exposure simultaneous transmission SAR test exclusion requirements), the host
manufacturer may do his own evaluation without any filing, using reasonable engineering judgment
and testing for confirming compliance with out-of-band, restricted band, and spurious emission
requirements in the simultaneous-transmission operating modes.
If additional filing is required please contact the person at Ambient Recording GmbH responsible for
certification of the RF module.
RF exposure statement (mobile and fixed devices)
The instruction manual of the host shall include the following statement:
This device complies with the RF exposure requirements for mobile and fixed devices. However, the
device shall be used in such a manner that the potential for human contact during normal operation is
minimized.
RF exposure statement (portable devices)
The instruction manual of the host shall include the following statement:

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This device complies with the RF exposure SAR test exclusion requirements for portable devices, if a
minimum separation distance of 15mm is kept. However, the device shall be used in such a manner
that the potential for human contact during normal operation is minimized

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5 Contact Information, Support
Ambient Recording GmbH
Schleissheimer Str. 181c
80797 Munich, Germany
Phone: [phone]
E-Mail: [email protected]
Web: ambient.de
Further documentation, firmware updates, and more: ambient.de/downloads/