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SPM522D RS-232
User Manual
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Biamp SPM522D RS-232 User Manual

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RS-232 Control
of the
Advantage SPM522D
________________________________________________________________________________________
Biamp Systems, 14130 N.W. Science Park, Portland, Oregon 97229 U.S.A. (503) 641-7287
an affiliate of Rauland-Borg Corp.
Introduction
Hexadecimal, ASCII-Hex, and "Pseudo-Hex" Numbers
Throughout this document, hexadecimal numbers shall be represented by preceding the number with "0x". For example: the hexadecimal equivalent of the decimal number 255 is 0xFF.
Individual ASCII characters, except control characters, will be enclosed in single quotes. For example: the ASCII character 'A' has the hexadecimal value 0x41. The ASCII "carriage return" control character shall be represented as . An ASCII code chart is included with this document for your convenience.
When an 8-bit binary data value is being transmitted over a serial data communications link, it is a common practice to transmit the byte as two "ASCII-hex" characters - one character represents the most significant nibble of the data value and the other character represents the least significant nibble (a nibble is 4-bits; half of a byte). Each ASCII-hex character is in the range of '0' thru '9' or 'A' thru 'F' (from the ASCII code chart, 0x30 thru 0x39 or 0x41 thru 0x46). For example, the hexadecimal equivalent of the decimal number 61 is 0x3D. To transmit this in an ASCII-hex format, first transmit the ASCII character '3' (whose hex value is 0x33), followed by the ASCII character 'D' (whose hex value is 0x44). This is the standard way to transmit an ASCII-hex value. In some cases, the lower case characters 'a' thru 'f' (0x61 thru 0x66) are accepted in addition to the upper case letters 'A' thru 'F'.
The Advantage SPM522D does not utilize standard ASCII-hex format. The SPM522D computer commands implement what I call "pseudo-hex" notation (also sometimes referred to as a "poor man's" ASCII-hex notation). Instead of representing the hexadecimal value using the ASCII characters '0' thru '9' and 'A', 'B', 'C', 'D', 'E', and 'F', the pseudo-hex format uses the ASCII characters '0' thru '9' and the characters ':', ';', '<', '=', '>', and '?'. As you can see by studying the ASCII code chart, a binary nibble may be converted to its equivalent pseudo-hex character by simply adding 0x30.
A binary/decimal/hexadecimal/pseudo-hex conversion chart is included at the end of this manual for your convenience.
Computer Control of the Advantage SPM522D page 1
Serial Interface - Data Communications Parameters
The SPM522D communicates through its serial interface at a data rate ("baud" rate) of 2400 bits per second with 8 data bits, 1 stop bit, and no parity. Although this is currently the only supported data rate, 9600 bits per second may be supported in the future - contact the factory for details. The SPM522D utilizes a subset of the standard 7-bit ASCII character set. The eighth data bit (bit 7 - the most significant bit) of each character transmitted by the computer should always be 0. The computer should not echo the characters it receives from the SPM522D.
Since the SPM522D only has a single-character input buffer for its incoming serial data, a form of flow control must be implemented by the computer in order to guarantee that no characters are lost. Neither hardware (DTR) nor XON/XOFF (also known as DC1/DC3 or control-S/control-Q) handshaking is supported by the SPM522D. However, each character which the SPM522D receives will be "echoed" back to the computer through the SPM522D's serial interface. Flow control may be implemented by the computer software by simply waiting for each character's echo from the SPM522D before transmitting the next character, since the SPM522D doesn't retrieve and echo an incoming character until it has finished processing the previous character.
Computer Control
The Advantage SPM522D has an RS-232-compatible serial interface which allows it to be controlled by a computer. The SPM522D offers two methods of computer control:
Control Button Emulation. This method of computer control allows the computer to
emulate Biamp's standard infrared remote control transmitter or wall-mount remote control panel. Using this method, the computer outputs ASCII characters which are equivalent to the characters generated by the remote control. Control Button Emulation is simple to perform, however, it only provides "one-way" control of the SPM522D - it allows the computer to send simple commands to the SPM522D, but it does not provide any mechanism for requesting status information from the SPM522D.
Advanced Computer Control. This method of computer control provides advanced
commands which allow "two-way" control of the SPM522D. Using Advanced Computer Control commands, the computer may request status information from the device as well as send commands to the device. Advanced Computer Control and Control Button Emulation are not mutually exclusive - both methods may be freely intermixed.
page 2 Computer Control of the Advantage SPM522D
Control Button Emulation
Control Button Emulation is the simplest form of computer control of the Advantage SPM522D. This method of operation allows the computer to emulate the operation of a standard Biamp remote control transmitter.
The SPM522D provides two rear-panel remote control ports plus a remote translator port in addition to the internal front-panel infrared receiver. The signals from these four inputs are routed to a proprietary infrared decoder IC for translation before being sent on to the SPM522D's main microprocessor. When the decoder IC detects a proper bitstream which indicates that a button is being pressed on one of the remote control devices, it converts the button code into a standard ASCII character and transmits it to the main microprocessor's serial port. This is a shared serial port - the same serial port which is used for computer control. When the microprocessor receives a character through its serial port, it doesn't know (and doesn't care) whether that character came from a remote control device or whether it came from the computer. So, in order for the computer to emulate the operation of a remote control transmitter, all it has to do is transmit the same ASCII characters that the decoder IC transmits for each detected button press.
The following table summarizes the ASCII characters corresponding to each of the 40 remote control buttons supported by the SPM522D. These button codes are also summarized on the ASCII code chart provided at the end of this manual. The Advantage PC Control Software Package also indicates on its button definition screen the equivalent ASCII character for each of the 40 individual remote control buttons. The remote control buttons on the standard Biamp transmitter are numbered from left to right going from bottom to top with the lower left-hand button being button number 1.
Control Button Equivalent ASCII Codes (with factory default button definitions shown)
button 1 'B' (0x42) Mic 1 volume down button 2 'C' (0x43) Mic 2 volume down button 3 'D' (0x44) Zone volume down button 4 'E' (0x45) Main volume down button 5 'F' (0x46) Mic 1 volume up button 6 'G' (0x47) Mic 2 volume up button 7 'H' (0x48) Zone volume up button 8 'I' (0x49) Main volume up button 9 'J' (0x4A) Mic 1 toggle mute button 10 'K' (0x4B) Mic 2 toggle mute button 11 'L' (0x4C) Zone toggle mute button 12 'M' (0x4D) Main toggle mute button 13 'N' (0x4E) Zone recall preset E button 14 'O' (0x4F) Zone recall preset F button 15 'P' (0x50) Zone recall preset G button 16 'Q' (0x51) Zone select source 5 button 17 'R' (0x52) Zone select source 1 button 18 'S' (0x53) Zone select source 2 button 19 'T' (0x54) Zone select source 3 button 20 'U' (0x55) Zone select source 4
button 21 'V' (0x56) Main recall preset A button 22 'W' (0x57) Main recall preset B button 23 'X' (0x58) Main recall preset C button 24 'Y' (0x59) Main select source 5 button 25 'Z' (0x5A) Main select source 1 button 26 '[' (0x5B) Main select source 2 button 27 '\' (0x5C) Main select source 3 button 28 ']' (0x5D) Main select source 4 button 29 '^' (0x5E) NOP (no operation) button 30 '_' (0x5F) NOP (no operation) button 31 '`' (0x60) NOP (no operation) button 32 'b' (0x62) NOP (no operation) button 33 'c' (0x63) NOP (no operation) button 34 'd' (0x64) NOP (no operation) button 35 'e' (0x65) NOP (no operation) button 36 'f' (0x66) NOP (no operation) button 37 'g' (0x67) NOP (no operation) button 38 'h' (0x68) NOP (no operation) button 39 'i' (0x69) NOP (no operation) button 40 'j' (0x6A) NOP (no operation)
When a remote control button is first pressed, the decoder IC sends the character which corresponds to that button to the SPM522D's main microprocessor. If the button is
Computer Control of the Advantage SPM522D page 3
pressed for longer than 110 milliseconds, the decoder IC will then send a "repeat code" to the main microprocessor and will continue to send additional repeat codes every 110 milliseconds for as long as the button is being pressed. The ASCII character corresponding to the repeat code is '@' (0x40).
Device Select Prefix Characters
When using Advanced Computer Control, up to eight SPM522Ds may be linked together and individually controlled by the computer (if each device is first assigned a unique device number). When using Control Button Emulation, a limited subset of device addressing may be performed, which allows individual control of up to four SPM522Ds (with device numbers 1 thru 4). This is accomplished by transmitting a device select prefix code immediately prior to each control button ASCII character code. The device select prefix code is inspected by each device to determine whether or not the device should react to the button code which immediately follows. (Note: do not transmit prefix codes prior to repeat codes.) If a button code is not immediately preceded by a device select prefix character, then all SPM522Ds in the system will react to that button code. The following table summarizes the ASCII characters to use for selecting various devices. This information is also summarized in the ASCII code chart provided at the end of this manual.
Device Select Prefix Codes
select device 1 'l' (0x6C) select device 2 'm' (0x6D) select devices 1 & 2 'n' (0x6E) select device 3 'o' (0x6F) select devices 1 & 3 'p' (0x70) select devices 2 & 3 'q' (0X71) select devices 1 & 2 & 3 'r' (0x72) select device 4 's' (0x73) select devices 1 & 4 't' (0x74) select devices 2 & 4 'u' (0x75) select devices 1 & 2 & 4 'v' (0x76) select devices 3 & 4 'w' (0x77) select devices 1 & 3 & 4 'x' (0x78) select devices 2 & 3 & 4 'y' (0x79) select devices 1 & 2 & 3 & 4 'z' (0x7A)
Note: Device select prefix codes are not supported (and will be ignored) by SPM522Ds with firmware versions earlier than July 2, 1995.
page 4 Computer Control of the Advantage SPM522D
Advanced Computer Control
The Advanced Computer Control command set includes commands which allow the SPM522D to return information about the system to the computer, unlike Control Button Emulation which is basically a one-way control mechanism. The following list summarizes the commands available using Advanced Computer Control, including the ASCII command character associated with each command:
!
virtual-button perform the specified button actions.
"
button-definition define or retrieve the definition for the specified button.
#
source-settings define or retrieve the stereo source settings (tone, balance).
$
preset-definition define or retrieve the definition for the specified preset.
%
do-misc miscellaneous functions.
&
do-button perform button actions for specified button.
'
do-preset-action perform the specified preset action.
(
do-volume-action perform the specified volume or balance action.
(
set-volume set the volume for the specified fader.
)
do-tone-action perform the specified bass or treble or balance action.
*
do-source-select perform the specified stereo source selection action.
+
sleep-for-10-sec. sleep for 10 seconds, ignoring all commands.
,
read-memory retrieve data from non-volatile configuration memory.
-
write-memory store data in non-volatile configuration memory.
.
set-factory-defaults resets configuration parameters to factory defaults.
/
get-version retrieve the model information and firmware version date.
Each Advanced Computer Control command requires at least two parameter bytes (four pseudo-hex nibbles) to be sent prior to the command character. Each command will be explained in detail on the following pages.
Some of the commands cause the SPM522D to return information to the computer. For each string of information returned to the computer, the SPM522D terminates the string by transmitting the ASCII carriage return character (0x0D - represented in this document as ). An internal dip-switch may be set to cause the SPM522D to append an ASCII line feed character (0x0A) after each carriage return. This dip-switch is labelled "Opt. X". When the Opt. X dip-switch is off, the option is disabled (no line feed); when the dip­switch is on, the option is enabled (a line feed follows each carriage return). The factory default setting is Opx. X disabled (no line feed).
As mentioned earlier, the Advantage SPM522D will echo all characters it receives, regardless of whether or not the characters are valid commands or parameters. Characters greater than 0x7F are reserved and should not be transmitted by the computer. The SPM522D utilizes a subset of the standard ASCII character set. The following characters have meaning to the SPM522D:
Computer Control of the Advantage SPM522D page 5
character hexadecima
operation
l
ASCII control characters (0x00 - 0x1F) no operation
SPACE
ASCII
!
thru
0
thru
@ A B
thru
a b
thru
k
thru
{
thru
0x80 thru 0xFF (0x80 - 0xFF) RESERVED
character
/
?
`
j z
DEL
(0x20) no operation
(0x21 - 0x2F) Advanced Computer Control
commands
(0x30 - 0x3F) pseudo-hex parameters for Advanced
Computer Control commands (0x40) Control Button Emulation Repeat Code (0x41) no operation
(0x42 - 0x60) Control Button Emulation commands
(buttons 01 - 31) (0x61) no operation
(0x62 - 0x6A) Control Button Emulation commands
(buttons 32 - 40)
(0x6B - 0x7A) Control Button Emulation Device Select
Prefix commands
(0x7B - 0x7F) no operation
An ASCII code chart showing all SPM522D commands and codes is provided later in this document for your convenience. One key point to observe is that the computer may feel free to transmit spaces, tabs, carriage returns, line feeds, or any other control characters at any time (even between two nibbles of a pseudo-hex parameter byte) without having any affect on the operation of the SPM522D. The SPM522D will simply echo them and then ignore them.
Device Type Bitmask and Device Number Bitmask
In a system which has more than one Advantage product connected to the computer, the Device Type Bitmask and Device Number Bitmask command parameters provide a mechanism for the computer to individually address a particular device (or a combination of devices). Every command in the Advanced Computer Control command set requires that a Device Type Bitmask and a Device Number Bitmask be transmitted as the last two parameter bytes before the computer transmits the command character itself. These two bitmask parameters bytes provide a device addressing capability to specify which of the devices in the system should execute the command. All devices which are not specifically addressed by these two bitmask values will ignore the command.
page 6 Computer Control of the Advantage SPM522D
The Device Type Bitmask parameter byte supports up to eight distinct device types - one bit per device type. The eight device types are:
0x01 (bit 0) Biamp Advantage DRC 4+4 digital remote control 0x02 (bit 1) Biamp Advantage EQ28X digitally-controlled graphic equalizer 0x04 (bit 2) Biamp Advantage SPM522D stereo preamp/mixer 0x08 (bit 3) Biamp Advantage PMX84 programmable matrix switch 0x10 (bit 4) (reserved for future product) 0x20 (bit 5) (reserved for future product) 0x40 (bit 6) (reserved for future product) 0x80 (bit 7) (reserved for future product)
The Advantage SPM522D will only respond to Advanced Computer Control commands if bit 2 of the Device Type Bitmask parameter byte is a '1'. A command may be directed to more than one device type in the system by setting all of the corresponding bits in the Device Type Bitmask to '1's.
The Device Number Bitmask parameter byte supports up to eight distinct device numbers
- one bit per device number. The eight device numbers are:
0x01 (bit 0) Select Device Number 1 0x02 (bit 1) Select Device Number 2 0x04 (bit 2) Select Device Number 3 0x08 (bit 3) Select Device Number 4 0x10 (bit 4) Select Device Number 5 0x20 (bit 5) Select Device Number 6 0x40 (bit 6) Select Device Number 7 0x80 (bit 7) Select Device Number 8
A particular Advantage SPM522D will only respond to Advanced Computer Control commands if the bit in the Device Number Bitmask parameter byte corresponding to its device number is a '1'. A command may be directed to more than one device number in the system by setting all of the corresponding bits in the Device Number Bitmask to '1's.
The Advanced Computer Control command set supports, in theory, up to sixty-four devices in a system - eight devices of each of the eight device types. In order for any particular device in the system to respond to an Advanced Computer Control command, the appropriate bit in both the Device Type and Device Number bitmask parameter bytes must be set to '1'.
Computer Control of the Advantage SPM522D page 7
Preset Data Structure
The SPM522D firmware maintains data structures for 12 presets:
preset 0 Main power-up preset preset 6 Zone power-up preset preset 1 Main preset 'A' preset 7 Zone preset 'E' preset 2 Main preset 'B' preset 8 Zone preset 'F' preset 3 Main preset 'C' preset 9 Zone preset 'G' preset 4 Main preset 'D' preset 10 Zone preset 'H' preset 5 Main "current mix" preset 11 Zone "current mix"
SPM522D Preset Data Structure
5-byte array with elements numbered preset[0] thru preset[4]
preset[4]
(transmitted first)
preset[3]
preset[2]]
preset[1]
preset[0]
(transmitted last)
(msb) (lsb)
Mute
Mic 2
Pri
Room Comb
Mic 1
Pri
Ch5
OV
Mic 2
EN
LAST RECALLED
Mix
Mod
MIC 2 VOLUMEMute
MIC 1 VOLUMEMute
OUTPUT VOLUME
Mic 1
OV
EN
EN
PRESET
SELECTED
01234567
Note: This value is only significant for presets 0 and 6 (power-up mixes)
SOURCE
Ch. 5 OVERRIDE ENABLED
MIC 1 ENABLED
MIC 2 ENABLED
MIC 1 PRIORITY
MIC 2 PRIORITY
The volume levels are 5-bit values which range from 0x00 (step 0 - minimum volume) to 0x1F (step 31 - maximum volume). Bit 7 of the volume bytes indicates whether or not that particular fader is muted. If the fader is muted, the actual volume level sent to the VCA is 0x00, but the volume level specified in the 5 least significant bits of the volume byte indicates the volume level which will be restored when that fader becomes un­muted.
The fifth byte of the preset data structure (preset[4]) is used only for presets 0 and 6, the power-up presets. The SPM522D periodically stores its current mix status in its non­volatile configuration memory as preset 0 (Main) and preset 6 (Zone). Unless configured otherwise, the SPM522D will recall presets 0 and 6 upon power-up.
page 8 Computer Control of the Advantage SPM522D
Stereo Source Data Structure
The SPM522D maintains data structures for 6 stereo sources. Source 0 is not used. Sources 1 thru 5 correspond to the five stereo inputs. These data structures contain the Main treble, Main bass, Main balance, Zone treble, Zone bass, and Zone balance information for each of the five stereo sources. Please note that the tone and balance information is directly associated with each stereo source and not associated with presets.
SPM522D Stereo Source Data Structure
4-byte array with elements numbered source[0] thru source[3]
source[3]
(transmitted first)
source[2]
source[1]
source[0]
(transmitted last)
(msb) (lsb)
ZONE BALANCE VALUERL
ZONE BASS VALUEZONE TREBLE VALUE
RL
MAIN BALANCE VALUE
MAIN BASS VALUEMAIN TREBLE VALUE
01234567
Bass and Treble values range from 0x00 (maximum cut -12 dB) to 0x0C (maximum boost +12 dB), with the value 0x06 corresponding to a "flat" response (no cut, no boost).
To best understand how the Balance control works, visualize two separate faders - one which affects the volume level of the left channel and one which affects the right channel. Each fader has a range of 0x08 (-24 dB) to 0x14 (0 dB). When the balance is centered, both faders are set at their maximum values of 0x14. To shift the balance to the right, decrease the left fader value. To shift the balance from the right back to the left, increase the left fader value until it once again reaches maximum (0x14) and then continue to shift to the left by decreasing the right fader value. At any given time, one or the other fader will be at its maximum value (and they will both be at maximum when the balance is centered). Since one value is always at maximum, there is no point in allocating space in the data structure to store two fader values to represent one balance setting. Instead, only one value is stored along with a flag bit to indicate whether the value is the left fader (bit
7) or the right fader value (bit 6). When the balance is centered, both fader values will be maximum (0x14) and it doesn't matter whether you specify the left fader value or the right fader value (the SPM522D will always report the value as if it is the left fader value).
Computer Control of the Advantage SPM522D page 9
Button Definition Data Structure
The SPM522D maintains data structures for 41 buttons (button 0 thru button 40 - button 0 is not used). Each button definition data structure consists of eight bytes - four bytes for Main button actions and four bytes for Zone button actions. The following illustration indicates which bit fields of which bytes are used for each type of action.
SPM522D Button Data Structure
8-byte array with elements numbered button[0] thru button[7]
button[7]
(transmitted first)
button[6]
(msb) (lsb)
TREBLE
ACTION
MIC 2 VOL ACTION
BASS
ACTION
BALANCE ACTION
MIC 1 VOL ACTION
01234567
ZONE
button[5]
button[4]
button[3]
button[2]
OUTPUT VOL ACTION
TREBLE
ACTION
MIC 2 VOL ACTION
BASS
ACTION
SOURCE SELECT
ACTION
PRESET NUMBERPRESET ACTION
BALANCE ACTION
MIC 1 VOL ACTION
MAIN
button[1]
button[0]
(transmitted last)
OUTPUT VOL ACTION
SOURCE SELECT
ACTION
PRESET NUMBERPRESET ACTION
The bit patterns for the various button action codes are shown in the following tables:
Preset action codes: 0000 NOP (no operation) 0001 Recall Preset 0010 Store Preset 0011 Enter Combined Mode then Recall 0100 (reserved) 0101 Cancel Combined Mode then Recall 0110 (reserved) 0111 (reserved) 1000 Toggle Combined Mode then Recall
page 10 Computer Control of the Advantage SPM522D
Source Select action codes: 0000 NOP (no operation) 0001 select channel 1 0010 select channel 2 0011 select channel 3 0100 select channel 4 0101 select channel 5 0110 (reserved) 0111 toggle channel 5 Override 1000 channel 5 Override 1001 cancel channel 5 Override 1010 enable mic 1 1011 disable mic 1 1100 toggle mic 1 enable 1101 enable mic 2 1110 disable mic 2 1111 toggle mic 2 enable
Mic 1, Mic 2, and Output Volume action codes: 0000 NOP (no operation) 0001 volume down 0010 volume up 0011 toggle mute 0100 mute 0101 un-mute 0110 minimum volume 0111 maximum volume 1000 (reserved) 1001 set volume to predefined level
Balance action codes: 0000 NOP (no operation) 1101 shift to the Left 1110 shift to the Right 1111 set balance to center
Bass and Treble action codes: 0 0 NOP (no operation) 0 1 cut 1 0 boost 1 1 set to flat
Computer Control of the Advantage SPM522D page 11
Advanced Computer Control Command Notation
For the following descriptions of the Advanced Computer Control command set, the following conventions will be used:
Each ASCII character which represents a pseudo-hex nibble will be shown in italics, with the following letters representing certain types of parameters:
a a pseudo-hex nibble specifying an action code. b one of the pseudo-hex nibbles specifying a button data structure. Also used to as a
pseudo-hex nibble to specify a bass action or to select a memory bank.
c a pseudo-hex nibble specifying a checksum value. d one of the pseudo-hex nibbles in the device number bitmask which indicates which
device numbers should accept the following command.
e a pseudo-hex nibble specifying a memory address in the non-volatile configuration
memory of the SPM522D (the ending address of a range of addresses).
f a pseudo-hex nibble specifying a fader selection. n a pseudo-hex nibble specifying a preset number, button number, or stereo source number. o a pseudo-hex nibble specifying a command option byte. p one of the pseudo-hex nibbles specifying a preset data structure. r a pseudo-hex nibble specifying the "room" selection (Main vs. Zone). s a pseudo-hex nibble specifying a memory address in the non-volatile configuration
memory of the SPM522D (the starting address of a range of addresses). Also used as one of the pseudo-hex nibbles specifying a stereo source data structure.
t one of the pseudo-hex nibbles specifying a treble action code. v a pseudo-hex nibble specifying a volume level x a pseudo-hex nibble specifying a generic data value.
page 12 Computer Control of the Advantage SPM522D
! virtual-button
Description:
The virtual-button command causes the specified button actions to be immediately performed. The actions are defined using the Button Definition Data Structure. The button definition is not stored in the SPM522D's nonvolatile memory, nor is the button definition associated with a button number. Normally, when the SPM522D receives a control button command, it looks-up the control button definition for that button number in its control button definition table and then performs the actions defined for that button. The virtual-button command allows the computer to specify the actions to be performed without having the SPM522D look-up an entry in its control button definition table. This command essentially provides the SPM522D (when under computer control) with an unlimited number of button definitions.
Syntax of Command:
bbbbbbbbbbbbbbbb04dd!
where:
bbbbbbbbbbbbbbbb = Button Definition Data Structure (pseudo-hex)
04 = SPM522D Device Type Bitmask dd = Device Number Bitmask (pseudo-hex)
! = virtual-button command character (0x21)
Syntax of Response:
(no response)
Example:
00455300004452000420!
This example causes SPM522D number 6 to immediately execute the following button actions:
Main - un-mute the output, select stereo source 2, mute Mic 1, mute Mic 2 Zone - un-mute the output, select stereo source 3, un-mute Mic 1, mute Mic 2.
Comments:
Computer Control of the Advantage SPM522D page 13
" define-button
Description:
The define-button command provides a new definition for the specified button number. The SPM522D will store this new button definition in its control button definition lookup table, replacing the definition that was there.
Syntax of Command:
bbbbbbbbbbbbbbbbnn04dd"
where:
bbbbbbbbbbbbbbbb = Button Definition Data Structure (pseudo-hex)
nn = Button Number + 128 (pseudo-hex)
04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
" = define-button command character (0x22)
Syntax of Response:
(no response)
Example:
0000000000000031940408"
This example causes SPM522D number 4 to redefine button number 20 (0x14) to enter Room Combining mode and recall preset mix 'A'.
Comments:
The decimal value 128 must be added to the Button number. This indicates to the SPM522D that this is the define-button form of the button-definition command.
page 14 Computer Control of the Advantage SPM522D
" get-button-definition
Description:
The get-button-definition command causes the SPM522D to return the definition of the specified button. The button definition will be returned in the Button Definition Data Structure format.
Syntax of Command:
nn04dd"
where:
nn = Button Number + 64 (pseudo-hex) 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
" = get-button-definition command character (0x22)
Syntax of Response:
bbbbbbbbbbbbbbbb
where:
bbbbbbbbbbbbbbbb = Button Definition Data Structure (pseudo-hex)
Example:
command: response:
5;0401" 0002000000020000
This example causes SPM522D number 1 to retrieve its button definition for control button number 27 (0x1B) and return it to the computer. In this example, the button definition was: increment the volume of Mic 1 in both the Main and Zone outputs.
Comments:
The decimal value 64 must be added to the Button number. This indicates to the SPM522D that this is the get-button form of the button-definition command.
Computer Control of the Advantage SPM522D page 15
# define-source-settings
Description:
The define-source-settings command provides new treble, bass, and balance settings for the specified stereo source. This command includes the settings for both Main and Zone. The new settings are stored in the SPM522D's non-volatile configuration memory. If the specified source is the currently selected source for either the Main or Zone output, the new settings become effective immediately.
Syntax of Command:
ssssssssnn04dd#
where:
ssssssss = Stereo Source Data Structure
nn = Source number + 128 (pseudo-hex)
04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
# = define-source-settings command character (0x23)
Syntax of Response:
(no response)
Example:
94669457820401#
This example causes SPM522D number 1 to change its settings for stereo source 2 to:
Main : bass boosted one step and treble cut one step, balance centered Zone : bass and treble flat, balance centered
Comments:
The decimal value 128 must be added to the Source number. This indicates to the SPM522D that this is the define-source-settings form of the source-settings command.
page 16 Computer Control of the Advantage SPM522D
# get-source-settings
Description:
The get-source-settings command causes the SPM522D to return the treble, bass, and balance settings for the specified stereo source. The settings will be returned in the Stereo Source Data Structure format. This includes the settings for both Main and Zone.
Syntax of Command:
nn04dd#
where:
nn = Source number + 64 (pseudo-hex) 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
# = get-source-settings command character (0x23)
Syntax of Response:
ssssssss
where:
ssssssss = Stereo Source Data Structure (pseudo-hex)
Example:
command: response:
420401# 94669466
This example causes SPM522D number 1 to retrieve its treble, bass, and balance settings for stereo source number 2 and return them to the computer. In this example, the source settings were:
Main : bass and treble flat, balance center Zone : bass and treble flat, balance center
Comments:
The decimal value 64 must be added to the Source number. This indicates to the SPM522D that this is the get-source-settings form of the source-settings command.
Computer Control of the Advantage SPM522D page 17
$ define-preset
Description:
The define-preset command provides settings for the specified preset. If either preset 5 (the Main "current mix") or preset 11 (the Zone "current mix") are specified, the new settings immediately go into effect. Otherwise, the new settings are simply stored in the SPM522D's non-volatile configuration memory for future recall.
Syntax of Command:
ppppppppppnn04dd$
where:
pppppppppp = Preset data structure
nn = Preset number + 128 (pseudo-hex)
04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
$ = define-preset command character (0x24)
Syntax of Response:
(no response)
Example:
00191?1<79830401$
This example causes SPM522D number 1 to change its settings for Main Preset 'C' to:
Stereo Source 1 selected Mics 1 and 2 both enabled, with Mic 1 priority Main output volume set to volume step 28 Mic 1 volume set to maximum (volume step 31) Mic 2 volume set to volume step 25
Comments:
The decimal value 128 must be added to the Preset number. This indicates to the SPM522D that this is the define-preset form of the preset-definition command. Preset numbers 1, 2, 3, 4 correspond to Main Presets 'A', 'B', 'C', 'D'. Preset numbers 7, 8, 9, 10 correspond to Zone Presets 'E', 'F', 'G', 'H'.
page 18 Computer Control of the Advantage SPM522D
$ get-preset-definition
Description:
The get-preset-definition command causes the SPM522D to return the settings for the specified preset. The settings will be returned in the Preset Data Structure format. Preset number 5 refers to the Main "current mix" and preset number 11 refers to the Zone "current mix".
Syntax of Command:
nn04dd$
where:
nn = Preset number + 64 (pseudo-hex) 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
$ = get-preset-definition command character (0x24)
Syntax of Response:
pppppppppp
where:
pppppppppp = Preset Data Structure (pseudo-hex)
Example:
command: response:
4;0401$ 18001?1?14
This example causes SPM522D number 1 to return its settings for the Zone "current mix" to the computer. In this example, the settings were: Stereo Source 4 selected, Ch.5 Override not allowed, Mic 1 enabled, Zone output volume and Mic 1 volume both set to maximum (step 31), Mic 2 volume set to minimum (step 0), the most recently recalled Zone preset was 'F' (8).
Comments:
The decimal value 64 must be added to the Preset number. This indicates to the SPM522D that this is the get-preset-definition form of the preset-definition command. Preset numbers 1, 2, 3, 4 correspond to Main Presets 'A', 'B', 'C', 'D'. Preset numbers 7, 8, 9, 10 correspond to Zone Presets 'E', 'F', 'G', 'H'.
Computer Control of the Advantage SPM522D page 19
% do-misc-ch5-override
Description:
The do-misc-ch5-override command allows the computer to allow or disallow the Channel 5 Override feature for the Main or Zone "current mix".
Syntax of Command:
xxaa04dd%
where:
xx = 01 = Ch5 Override allowed. 00 = not allowed.
aa = Action code: 81 = Main. 82 = Zone.
04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex) % = do-misc command character (0x25)
Syntax of Response:
(no response)
Example:
01810402%
This example causes SPM522D number 2 to allow Channel 5 Override for the Main output.
Comments:
page 20 Computer Control of the Advantage SPM522D
% do-misc-mic-priority
Description:
The do-misc-mic-priority command allows the computer to specify the mic priority for the Main or Zone "current mix".
Syntax of Command:
xxaa04dd%
where:
xx = Priority: 00 = None, 01 = Mic 1, 02 = Mic 2.
aa = Action code: 83 = Main. 84 = Zone.
04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex) % = do-misc command character (0x25)
Syntax of Response:
(no response)
Example:
02840401%
This example causes SPM522D number 1 to assign priority to Mic 2 for the Zone output "current mix".
Comments:
Computer Control of the Advantage SPM522D page 21
% do-misc-mic-enable
Description:
The do-misc-mic-enable command allows the computer to enable or disable ("assign" or "un-assign") Mic 1 or Mic 2 for the Main or Zone "current mix".
Syntax of Command:
xxaa04dd%
where:
xx = 01 = Enable. 00 = Disable.
aa = Action code: 85 = Mic 1 Main. 86 = Mic 2 Main.
87 = Mic 1 Zone. 88 = Mic 2 Zone. 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex) % = do-misc command character (0x25)
Syntax of Response:
(no response)
Example:
01850401%01870401%
This example consists of two commands, causing SPM522D number 1 to enable Mic 1 for both the Main and Zone "current mixes".
Comments:
page 22 Computer Control of the Advantage SPM522D
& do-button
Description:
The do-button command causes the SPM522D to look-up and perform the actions for the specified button number.
Syntax of Command:
nn04dd&
where:
nn = Button Number (pseudo-hex) 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
& = do-button command character (0x26)
Syntax of Response:
(no response)
Example:
28040?&
This example causes SPM522D numbers 1, 2, 3, and 4 to look-up and perform the actions defined in their respective control button definition tables for button number 40 (0x28).
Comments:
Button number must be 01 to 40 (0x01 to 0x28), otherwise the command will be ignored.
Computer Control of the Advantage SPM522D page 23
' do-preset-action
Description:
The do-preset-action command causes the SPM522D to perform the specified preset or room-combining action.
Syntax of Command:
an04dd'
where:
a = Action code (pseudo-hex nibble)
1 = Recall. 2 = Store. 3 = Combine then Recall. 5 = Cancel Combining then Recall. 8 = Toggle Combining then Recall.
n = Preset Number (pseudo-hex nibble)
1, 2, 3, 4 = Main Preset 'A', 'B', 'C', 'D'
7, 8, 9, : = Zone Preset 'E', 'F', 'G', 'H' 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
' = do-preset-action command character (0x27)
Syntax of Response:
(no response)
Example:
120401'
This example causes SPM522D number 1 to recall preset 'B'.
Comments:
page 24 Computer Control of the Advantage SPM522D
( do-volume-action
Description:
The do-volume-action command causes the SPM522D to perform the specified volume action.
Syntax of Command:
aaff04dd(
where:
aa = Action code. 01 = Volume Down.
02 = Volume Up. 03 = Toggle Mute. 04 = Mute.
05 = Un-mute. 06 = Minimum Vol. 07 = Max Vol.
ff = Fader Selection Bitmask (pseudo-hex)
01 = Mic 1 Zone. 02 = Mic 2 Zone.
04 = Mic 1 Main. 08 = Mic 2 Main.
10 = Main Output. 20 = Zone Output. 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
( = do-volume-action command character (0x28)
Syntax of Response:
(no response)
Example:
04100401(
This example causes SPM522D number 1 to Mute the Main output.
Comments:
Multiple faders may be addressed simultaneously by combining bit values in the fader selection bitmask. For example, 04300401( mutes both the Main and the Zone outputs of SPM522D number 1. Another example: 010?0401( turns down the volume (by one step) of both Mic 1 and Mic 2 in both the Main and Zone outputs.
Computer Control of the Advantage SPM522D page 25
( set-volume
Description:
The set-volume command causes the SPM522D to set the specified "fader" to a new volume level. The volume level is a 5-bit value which ranges from 0x00 (step 0 ­minimum volume) to 0x1F (step 31 - maximum volume). Bit 7 of the volume byte indicates whether or not that particular fader should be muted. When bit 7 indicates that the fader should be muted (bit 7 = '1'), the 5 least significant bits (bits 0 - 4) indicate the volume level which will be restored by the SPM522D if that fader subsequently becomes un-muted.
Syntax of Command:
vv09ff04dd(
where:
vv = Volume level (pseudo-hex).
09 = set-volume action code.
ff = Fader Selection Bitmask (pseudo-hex)
01 = Mic 1 Zone. 02 = Mic 2 Zone.
04 = Mic 1 Main. 08 = Mic 2 Main.
10 = Main Output. 20 = Zone Output. 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
( = set-volume command character (0x28)
Syntax of Response:
(no response)
Example:
1709100401(
This example causes SPM522D number 1 to set its Main Output volume to approximately 75% of maximum (volume step 0x17, or 23 decimal).
Comments:
This command is not implemented in firmware versions prior to 23-Aug-95. Multiple faders may be addressed simultaneously by combining bit values in the fader selection bitmask. This is a variation of the do-volume-action command, and hence has the same command character as the do-volume-action command.
page 26 Computer Control of the Advantage SPM522D
( do-balance-action
Description:
The do-balance-action command causes the SPM522D to perform the specified balance action.
Syntax of Command:
aarr04dd(
where:
aa = Action code (2 pseudo-hex nibbles):
0= Shift to the Left one step
0> Shift to the Right one step
0? Reset the Balance to center
rr = Room (Main/Zone) Selection Bitmask (pseudo-hex)
40 = Main. 80 = Zone. <0 = both Main and Zone. 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
( = do-balance-action command character (0x28)
Syntax of Response:
(no response)
Example:
0?400401(
This example causes SPM522D number 1 to re-center the balance control for the currently selected stereo source for the Main output.
Comments:
This is a variation of the do-volume-action command, and hence has the same command character as the do-volume-action command.
Computer Control of the Advantage SPM522D page 27
) do-tone-action
Description:
The do-tone-action command causes the SPM522D to perform the specified tone actions.
Syntax of Command:
tbrr04dd)
where:
t = Treble Action code: 0 = NOP (no action).
1 = Cut. 2 = Boost. 3 = Reset Treble to Flat.
b = Bass Action code: 0 = NOP (no action).
1 = Cut. 2 = Boost. 3 = Reset Bass to Flat.
rr = Room (Main/Zone) Selection Bitmask (pseudo-hex)
40 = Main. 80 = Zone. <0 = both Main and Zone. 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
) = do-tone-action command character (0x29)
Syntax of Response:
(no response)
Example:
33<00401)
This example causes SPM522D number 1 to set both the Treble and Bass "flat" for the currently selected stereo source for the both the Main and Zone outputs.
Comments:
page 28 Computer Control of the Advantage SPM522D
* do-source-select
Description:
The do-source-select command causes the SPM522D to perform the specified stereo source/channel selection.
Syntax of Command:
aarr04dd*
where:
aa = Action code:
01 = channel 1. 02 = channel 2. 03 = channel 3.
04 = channel 4. 05 = channel 5.
07 = toggle channel 5 Override.
08 = activate channel 5 Override.
09 = cancel channel 5 Override.
rr = Room (Main/Zone) Selection Bitmask (pseudo-hex)
40 = Main. 80 = Zone. <0 = both Main and Zone. 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
* = do-source-select command character (0x2A)
Syntax of Response:
(no response)
Example:
03800401*
This example causes SPM522D number 1 to select stereo source (channel) 3 for the Zone output.
Comments:
The channel 5 Override functions will be executed regardless of whether or not the channel 5 Override feature is enabled or disabled in the "current" mix.
Computer Control of the Advantage SPM522D page 29
+ sleep-for-10-seconds
Description:
The sleep-for-10-seconds command causes the SPM522D to "go to sleep" for 10 seconds, ignoring all data communications, including Control Button commands as well as Advanced Computer Control commands. During this time, characters received will be ignored and will not be echoed. Also, during this time, all remote control devices will be ignored. This command was implemented to facilitate remote computer control of the SPM522D via modem (with an auto-answer modem at the SPM522D). When an on-line session with a modem is finished and one modem or the other decides to disconnect or "hang up the phone", typically a spurt of unwanted spurious garbage characters occurs on the line. The SPM522D has no way of distinguishing between "garbage" characters and real characters. The last thing the computer should do before telling its modem to hang up is to issue the sleep-for-10-seconds command. This will allow plenty of time for the line to disconnect and the SPM522D will ignore all characters which it might receive during this hang-up process.
Syntax of Command:
ttdd+
where:
tt = Device Type Bitmask (pseudo-hex) 04 = SPM522D
dd = Device Number Bitmask (pseudo-hex)
+ = sleep-for-10-seconds command character (0x2B)
Syntax of Response:
(no response)
Example:
????+
This example causes all Advantage devices in the system to sleep for 10 seconds, ignoring all data communications.
Comments:
Note that the command character '+' is typically also the character used to return a Hayes­compatible modem to its command mode.
, read-memory
page 30 Computer Control of the Advantage SPM522D
Description:
The read-memory command allows the computer to read the contents of one or more locations of the SPM522D's non-volatile configuration memory. The SPM522D has 512 bytes of configuration memory, which is arranged as two banks of 256 bytes each.
Syntax of Command:
bbeess04dd,
where:
bb = memory Bank select. 00 = bank 0. 01 = bank 1.
ee = Ending memory address (pseudo-hex)
ss = Starting memory address (pseudo-hex)
04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
, = read-memory command character (0x2C)
Syntax of Response:
xx...(up to 256 data values)...
where:
xx = Data byte (pseudo-hex). Value in end addr is sent first.
Example:
command:
0006000401,
response:
03020;05020401
This example causes SPM522D number 1 to return the data values which are currently stored in locations 00 thru 06 of bank 0 of the configuration memory. In this example, memory location 00 contains the pseudo-hex value 01 and memory location 06 contains the pseudo-hex value 03.
Comments:
Computer Control of the Advantage SPM522D page 31
To read the contents of only one location, set both the starting and ending address to the same value (the desired address). The starting address should always be less than or equal to the ending address. Valid addresses for each bank are 0x00 thru 0xFF (pseudo­hex 00 thru ??). The data is sent in reverse order (last location first).
Contents of Bank 0:
0x00 - 0x3F Global Configuration Parameters 0x40 - 0x57 Stereo Source Tone and Balance Settings 0x58 - 0x93 Main and Zone Configuration Presets 0x94 - 0xB7 (reserved - currently unused) 0xB8 - 0xFF Button Definitions for Buttons 0 thru 8 (button 0 is unused)
Contents of Bank 1:
0x00 - 0xFF Button Definitions for Buttons 9 thru 40
page 32 Computer Control of the Advantage SPM522D
- write-memory
Description:
The write-memory command allows the computer to store one or more data values in the SPM522D's non-volatile configuration memory beginning at a specified location. The SPM522D has 512 bytes of configuration memory, which is arranged as two banks of 256 bytes each. Each memory-write command may include up to 16 data values to be stored in a contiguous range of memory locations for the specified memory bank. This command provides the computer with a mechanism for setting or changing the global configuration parameters for the device. It also provides the computer with a method for totally messing things up.
Syntax of Command:
xx...(up to 16 data values)...ssoocc04dd-
where:
xx.. = up to 16 data values (pseudo-hex). The values are sent
in reverse order (highest memory address first)
ss = starting (lowest) memory address (pseudo-hex)
oo = options & byte count (pseudo-hex)
bits 0, 1, 2, 3 = number of data values - 1
bit 4 - reserved (must be 0)
bit 5 - memory Bank select. 0 = Bank 0. 1 = Bank 1.
bit 6 - reserved (must be 0)
bit 7 - 1 = activate new global config params now.
cc = computed checksum value (pseudo-hex) 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
- = write-memory command character (0x2D)
Syntax of Response:
(no response)
Example:
03020138823?0401-
This example causes SPM522D number 1 to store the values 0x01, 0x02, 0x03 in configuration memory bank 0 beginning at address 0x38 and causes the unit to retrieve and activate its global configuration parameters.
Computer Control of the Advantage SPM522D page 33
Comments:
In order to insure data integrity, a checksum value is included with this command. The checksum is computed by performing a simple 8-bit (modulo 256) sum of all of the data values plus the starting address value plus the option byte value and then performing a 1's complement of the sum. Note that the checksum calculation is performed on the actual 8­bit binary values, before any values are converted to pseudo-hex format for transmission. The SPM522D will perform the same calculation on the data values which it receives and compare its computed checksum to the received checksum. If the two values do not match, the SPM522D will ignore the entire command.
The SPM522D normally retrieves and activates its global configuration parameters from the non-volatile configuration memory only during its power-up sequence. If you use the write-memory command to change a global configuration parameter (which is why the command was provided), the SPM522D has to specifically be told to re-load and activate its configuration parameters after the new value is stored in its memory. Bit 7 of the options & byte count parameter may be set to tell the unit to automatically retrieve and activate its configuration parameters after the memory write operation is complete.
page 34 Computer Control of the Advantage SPM522D
. set-factory-defaults
Description:
The set-factory-defaults command may be used to force the SPM522D to reset some or all of its configuration information to the factory default settings. The first two parameters for this command (< and >) are dummy parameters which were implemented to help prevent an accidental restoration of the factory defaults due to an error in data transmission.
Syntax of Command:
<>oo04dd.
where:
< = the ASCII character < (0x3C) > = the ASCII character > (0x3E)
oo = Option byte (pseudo-hex):
bit 0 - 1 = set Button Definition defaults bit 1 - 1 = set Preset defaults bit 2 - 1 = set Global Config Parameter defaults bit 3 - 1 = set Stereo Source Tone/Balance defaults *
bit 7 - 1 = activate new Global Config Params now 04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
. = set-factory-defaults command character (0x2E)
Syntax of Response:
(no response)
Example:
<>84040?.
This example causes SPM522D numbers 1, 2, 3, and 4 to restore their global configuration parameters to the factory default settings and to retrieve and activate those new settings.
Comments:
Firmware versions prior to July 2, 1995 have a bug relating to the set Stereo Tone/Balance Defaults option - attempting to set bit 3 to activate this option will result in the SPM522D ignoring the entire command.
Computer Control of the Advantage SPM522D page 35
/ get-version
Description:
The get-version command causes the SPM522D to return its model identification code and firmware version to the computer. The firmware version number is simply the release date of the firmware, in a slightly modified standard American format of mm:dd:yy. These values are decimal digits, not pseudo-hex notation. For example, May 23, 1995 would be represented as 05:23:95. The colon character (:) is used as a separator instead of the more conventional slash character, since the slash character is used as a computer command character by the SPM522D.
Syntax of Command:
04dd/
where:
04 = Device Type Bitmask (pseudo-hex) dd = Device Number Bitmask (pseudo-hex)
/ = get-version command character (0x2F)
Syntax of Response:
01 mm:dd:yy
where:
01 = initial model i.d. (0x30 followed by 0x31)
= ASCII space character (0x20)
mm = 2-digit decimal month number
: = ASCII character : (0x3A)
dd = 2-digit decimal day of the month
: = ASCII character : (0x3A)
yy = 2-digit decimal year number
Example:
command: response:
0401/ 01 05:23:95
This example causes SPM522D number 1 to return its model identification code and firmware version.
Comments:
page 36 Computer Control of the Advantage SPM522D
Advanced Computer Command Summary
bbbbbbbbbbbbbbbb04dd! virtual-button
bbbbbbbbbbbbbbbbnn04dd" define-button
nn04dd" get-button-definition
ssssssssnn04dd# define-source-settings
nn04dd# get-source-settings
ppppppppppnn04dd$ define-preset
nn04dd$ get-preset-definition xxaa04dd% do-misc-ch5-override xxaa04dd% do-misc-mic-priority xxaa04dd% do-misc-mic-enable
nn04dd& do-button
an04dd' do-preset-action
aaff04dd( do-volume-action
vv09ff04dd( set-volume
aarr04dd( do-balance-action
tbrr04dd) do-tone-action
aarr04dd* do-source-select
04dd+ sleep-for-10-seconds
bbeess04dd, read-memory
....xxssoocc04dd- write-memory
<>oo04dd. set-factory-defaults
04dd/ get-version
a a pseudo-hex nibble specifying an action code. b one of the pseudo-hex nibbles specifying a button data structure. Also used to as a pseudo-hex nibble to specify a
bass action or to select a memory bank.
c a pseudo-hex nibble specifying a checksum value. d one of the pseudo-hex nibbles in the device number bitmask which indicates which device numbers should accept
the following command.
e a pseudo-hex nibble specifying a memory address in the non-volatile configuration memory of the SPM522D (the
ending address of a range of addresses).
f a pseudo-hex nibble specifying a fader selection. n a pseudo-hex nibble specifying a preset number, button number, or stereo source number. o a pseudo-hex nibble specifying a command option byte. p one of the pseudo-hex nibbles specifying a preset data structure. r a pseudo-hex nibble specifying the "room" selection (Main vs. Zone). s a pseudo-hex nibble specifying a memory address in the non-volatile configuration memory of the SPM522D (the
starting address of a range of addresses). Also used as one of the pseudo-hex nibbles specifying a stereo source data structure.
t one of the pseudo-hex nibbles specifying a treble action code. v a pseudo-hex nibble specifying a volume level x a pseudo-hex nibble specifying a generic data value.
Computer Control of the Advantage SPM522D page 37
.
ASCII Code Chart
with Decimal & Hexadecimal Equivalents and Advantage SPM522D Commands
000.
001.
SOH
002.
003.
004.
005.
ENQ
006.
ACK
007.
008.
009.
010.
011.
012.
013.
014.
015.
NUL
STX
ETX
EOT
BEL
BS
HT
LF
VT
FF
CR
SO
SI
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
016.
017.
018.
019.
020.
021.
022.
023.
024.
025.
026.
027.
028.
029.
030.
031.
DLE
DC1
DC2
DC3
DC4
NAK
SYN
ETB
CAN
EM
SUB
ESC
FS
GS
RS
US
0x10
032.
(space)
0x11
033.
virtual button
0x12
034.
button defn
0x13
035.
source settings
0x14
036.
preset defn
0x15
037.
do-misc
0x16
038.
do-button
0x17
039.
do preset
0x18
040.
do volume
0x19
041.
do tone
0x1A
042.
do-source
0x1B
043.
sleep 10 sec.
0x1C
044.
read memory
0x1D
045.
write memory
0x1E
046.
set defaults
0x1F
047.
get version
!
" # $
%
&
' ( ) *
+
,
-
.
/
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
048.
0
nibble 0x0
049.
1
nibble 0x1
050.
2
nibble 0x2
051.
3
nibble 0x3
052.
4
nibble 0x4
053.
5
nibble 0x5
054.
6
nibble 0x6
055.
7
nibble 0x7
056.
8
nibble 0x8
057.
9
nibble 0x9
058.
:
nibble 0xA
059.
;
nibble 0xB
060.
<
nibble 0xC
061.
=
nibble 0xD
062.
>
nibble 0xE
063.
?
nibble 0xF
0x30
0x31
0x32
0x33
0x34
0x35
0x36
0x37
0x38
0x39
0x3A
0x3B
0x3C
0x3D
0x3E
0x3F
064.
@
repeat code
065.
A
066.
B
button 01
067.
C
button 02
068.
D
button 03
069.
E
button 04
070.
F
button 05
071.
G
button 06
072.
H
button 07
073.
I
button 08
074.
J
button 09
075.
K
button 10
076.
L
button 11
077.
M
button 12
078.
N
button 13
079.
O
button 14
0x40
0x41
0x42
0x43
0x44
0x45
0x46
0x47
0x48
0x49
0x4A
0x4B
0x4C
0x4D
0x4E
0x4F
080.
P
button 15
081.
Q
button 16
082.
R
button 17
083.
S
button 18
084.
T
button 19
085.
U
button 20
086.
V
button 21
087.
W
button 22
088.
X
button 23
089.
Y
button 24
090.
Z
button 25
091.
[
button 26
092.
\
button 27
093.
]
button 28
094.
^
button 29
095.
_
button 30
0x50
0x51
0x52
0x53
0x54
0x55
0x56
0x57
0x58
0x59
0x5A
0x5B
0x5C
0x5D
0x5E
0x5F
096.
`
button 31
097.
a
098.
b
button 32
099.
c
button 33
100.
d
button 34
101.
e
button 35
102.
f
button 36
103.
g
button 37
104.
h
button 38
105.
i
button 39
106.
j
button 40
107.
k
select none
108.
l
select 1
109.
m
select 2
110.
n
select 1,2
111.
o
select 3
0x60
0x61
0x62
0x63
0x64
0x65
0x66
0x67
0x68
0x69
0x6A
0x6B
0x6C
0x6D
0x6E
0x6F
112.
0x70
p
select 1,3
113.
0x71
q
select 2,3
114.
0x72
r
select 1,2,3
115.
0x73
s
select 4
116.
0x74
t
select 1,4
117.
0x75
u
select 2,4
118.
0x76
v
select 1,2,4
119.
0x77
w
select 3,4
120.
0x78
x
select 1,3,4
121.
0x79
y
select 2,3,4
122.
0x7A
z
select 1,2,3,4
123.
0x7B
{
124.
125.
0x7C
0x7D
}
126.
0x7E
~
127.
0x7F
DEL
page 38 Computer Control of the Advantage SPM522D
HEXADECIMAL CONVERSION CHART
binary decimal hex pseudo 0000 0000 0. 0x00 00 0000 0001 1. 0x01 01 0000 0010 2. 0x02 02 0000 0011 3. 0x03 03 0000 0100 4. 0x04 04 0000 0101 5. 0x05 05 0000 0110 6. 0x06 06 0000 0111 7. 0x07 07 0000 1000 8. 0x08 08 0000 1001 9. 0x09 09 0000 1010 10. 0x0a 0: 0000 1011 11. 0x0b 0; 0000 1100 12. 0x0c 0< 0000 1101 13. 0x0d 0= 0000 1110 14. 0x0e 0> 0000 1111 15. 0x0f 0? 0001 0000 16. 0x10 10 0001 0001 17. 0x11 11 0001 0010 18. 0x12 12 0001 0011 19. 0x13 13 0001 0100 20. 0x14 14 0001 0101 21. 0x15 15 0001 0110 22. 0x16 16 0001 0111 23. 0x17 17 0001 1000 24. 0x18 18 0001 1001 25. 0x19 19 0001 1010 26. 0x1a 1: 0001 1011 27. 0x1b 1; 0001 1100 28. 0x1c 1< 0001 1101 29. 0x1d 1= 0001 1110 30. 0x1e 1> 0001 1111 31. 0x1f 1? 0010 0000 32. 0x20 20 0010 0001 33. 0x21 21 0010 0010 34. 0x22 22 0010 0011 35. 0x23 23 0010 0100 36. 0x24 24 0010 0101 37. 0x25 25 0010 0110 38. 0x26 26 0010 0111 39. 0x27 27 0010 1000 40. 0x28 28 0010 1001 41. 0x29 29 0010 1010 42. 0x2a 2: 0010 1011 43. 0x2b 2; 0010 1100 44. 0x2c 2< 0010 1101 45. 0x2d 2= 0010 1110 46. 0x2e 2> 0010 1111 47. 0x2f 2? 0011 0000 48. 0x30 30 0011 0001 49. 0x31 31 0011 0010 50. 0x32 32 0011 0011 51. 0x33 33 0011 0100 52. 0x34 34 0011 0101 53. 0x35 35 0011 0110 54. 0x36 36 0011 0111 55. 0x37 37 0011 1000 56. 0x38 38 0011 1001 57. 0x39 39 0011 1010 58. 0x3a 3: 0011 1011 59. 0x3b 3; 0011 1100 60. 0x3c 3< 0011 1101 61. 0x3d 3= 0011 1110 62. 0x3e 3> 0011 1111 63. 0x3f 3?
binary decimal 0100 0000 64. 0x40 40 0100 0001 65. 0x41 41 0100 0010 66. 0x42 42 0100 0011 67. 0x43 43 0100 0100 68. 0x44 44 0100 0101 69. 0x45 45 0100 0110 70. 0x46 46 0100 0111 71. 0x47 47 0100 1000 72. 0x48 48 0100 1001 73. 0x49 49 0100 1010 74. 0x4a 4: 0100 1011 75. 0x4b 4; 0100 1100 76. 0x4c 4< 0100 1101 77. 0x4d 4= 0100 1110 78. 0x4e 4> 0100 1111 79. 0x4f 4? 0101 0000 80. 0x50 50 0101 0001 81. 0x51 51 0101 0010 82. 0x52 52 0101 0011 83. 0x53 53 0101 0100 84. 0x54 54 0101 0101 85. 0x55 55 0101 0110 86. 0x56 56 0101 0111 87. 0x57 57 0101 1000 88. 0x58 58 0101 1001 89. 0x59 59 0101 1010 90. 0x5a 5: 0101 1011 91. 0x5b 5; 0101 1100 92. 0x5c 5< 0101 1101 93. 0x5d 5= 0101 1110 94. 0x5e 5> 0101 1111 95. 0x5f 5? 0110 0000 96. 0x60 60 0110 0001 97. 0x61 61 0110 0010 98. 0x62 62 0110 0011 99. 0x63 63 0110 0100 100. 0x64 64 0110 0101 101. 0x65 65 0110 0110 102. 0x66 66 0110 0111 103. 0x67 67 0110 1000 104. 0x68 68 0110 1001 105. 0x69 69 0110 1010 106. 0x6a 6: 0110 1011 107. 0x6b 6; 0110 1100 108. 0x6c 6< 0110 1101 109. 0x6d 6= 0110 1110 110. 0x6e 6> 0110 1111 111. 0x6f 6? 0111 0000 112. 0x70 70 0111 0001 113. 0x71 71 0111 0010 114. 0x72 72 0111 0011 115. 0x73 73 0111 0100 116. 0x74 74 0111 0101 117. 0x75 75 0111 0110 118. 0x76 76 0111 0111 119. 0x77 77 0111 1000 120. 0x78 78 0111 1001 121. 0x79 79 0111 1010 122. 0x7a 7: 0111 1011 123. 0x7b 7; 0111 1100 124. 0x7c 7< 0111 1101 125. 0x7d 7= 0111 1110 126. 0x7e 7> 0111 1111 127. 0x7f 7?
hex pseudo
binary decimal 1000 0000 128. 0x80 80 1000 0001 129. 0x81 81 1000 0010 130. 0x82 82 1000 0011 131. 0x83 83 1000 0100 132. 0x84 84 1000 0101 133. 0x85 85 1000 0110 134. 0x86 86 1000 0111 135. 0x87 87 1000 1000 136. 0x88 88 1000 1001 137. 0x89 89 1000 1010 138. 0x8a 8: 1000 1011 139. 0x8b 8; 1000 1100 140. 0x8c 8< 1000 1101 141. 0x8d 8= 1000 1110 142. 0x8e 8> 1000 1111 143. 0x8f 8? 1001 0000 144. 0x90 90 1001 0001 145. 0x91 91 1001 0010 146. 0x92 92 1001 0011 147. 0x93 93 1001 0100 148. 0x94 94 1001 0101 149. 0x95 95 1001 0110 150. 0x96 96 1001 0111 151. 0x97 97 1001 1000 152. 0x98 98 1001 1001 153. 0x99 99 1001 1010 154. 0x9a 9: 1001 1011 155. 0x9b 9; 1001 1100 156. 0x9c 9< 1001 1101 157. 0x9d 9= 1001 1110 158. 0x9e 9> 1001 1111 159. 0x9f 9? 1010 0000 160. 0xa0 :0 1010 0001 161. 0xa1 :1 1010 0010 162. 0xa2 :2 1010 0011 163. 0xa3 :3 1010 0100 164. 0xa4 :4 1010 0101 165. 0xa5 :5 1010 0110 166. 0xa6 :6 1010 0111 167. 0xa7 :7 1010 1000 168. 0xa8 :8 1010 1001 169. 0xa9 :9 1010 1010 170. 0xaa :: 1010 1011 171. 0xab :; 1010 1100 172. 0xac :< 1010 1101 173. 0xad := 1010 1110 174. 0xae :> 1010 1111 175. 0xaf :? 1011 0000 176. 0xb0 ;0 1011 0001 177. 0xb1 ;1 1011 0010 178. 0xb2 ;2 1011 0011 179. 0xb3 ;3 1011 0100 180. 0xb4 ;4 1011 0101 181. 0xb5 ;5 1011 0110 182. 0xb6 ;6 1011 0111 183. 0xb7 ;7 1011 1000 184. 0xb8 ;8 1011 1001 185. 0xb9 ;9 1011 1010 186. 0xba ;: 1011 1011 187. 0xbb ;; 1011 1100 188. 0xbc ;< 1011 1101 189. 0xbd ;= 1011 1110 190. 0xbe ;> 1011 1111 191. 0xbf ;?
hex pseudo
binary decimal 1100 0000 192. 0xc0 <0 1100 0001 193. 0xc1 <1 1100 0010 194. 0xc2 <2 1100 0011 195. 0xc3 <3 1100 0100 196. 0xc4 <4 1100 0101 197. 0xc5 <5 1100 0110 198. 0xc6 <6 1100 0111 199. 0xc7 <7 1100 1000 200. 0xc8 <8 1100 1001 201. 0xc9 <9 1100 1010 202. 0xca <: 1100 1011 203. 0xcb <; 1100 1100 204. 0xcc << 1100 1101 205. 0xcd <= 1100 1110 206. 0xce <> 1100 1111 207. 0xcf <? 1101 0000 208. 0xd0 =0 1101 0001 209. 0xd1 =1 1101 0010 210. 0xd2 =2 1101 0011 211. 0xd3 =3 1101 0100 212. 0xd4 =4 1101 0101 213. 0xd5 =5 1101 0110 214. 0xd6 =6 1101 0111 215. 0xd7 =7 1101 1000 216. 0xd8 =8 1101 1001 217. 0xd9 =9 1101 1010 218. 0xda =: 1101 1011 219. 0xdb =; 1101 1100 220. 0xdc =< 1101 1101 221. 0xdd == 1101 1110 222. 0xde => 1101 1111 223. 0xdf =? 1110 0000 224. 0xe0 >0 1110 0001 225. 0xe1 >1 1110 0010 226. 0xe2 >2 1110 0011 227. 0xe3 >3 1110 0100 228. 0xe4 >4 1110 0101 229. 0xe5 >5 1110 0110 230. 0xe6 >6 1110 0111 231. 0xe7 >7 1110 1000 232. 0xe8 >8 1110 1001 233. 0xe9 >9 1110 1010 234. 0xea >: 1110 1011 235. 0xeb >; 1110 1100 236. 0xec >< 1110 1101 237. 0xed >= 1110 1110 238. 0xee >> 1110 1111 239. 0xef >? 1111 0000 240. 0xf0 ?0 1111 0001 241. 0xf1 ?1 1111 0010 242. 0xf2 ?2 1111 0011 243. 0xf3 ?3 1111 0100 244. 0xf4 ?4 1111 0101 245. 0xf5 ?5 1111 0110 246. 0xf6 ?6 1111 0111 247. 0xf7 ?7 1111 1000 248. 0xf8 ?8 1111 1001 249. 0xf9 ?9 1111 1010 250. 0xfa ?: 1111 1011 251. 0xfb ?; 1111 1100 252. 0xfc ?< 1111 1101 253. 0xfd ?= 1111 1110 254. 0xfe ?> 1111 1111 255. 0xff ??
hex pseudo
Computer Control of the Advantage SPM522D page 39
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