* In Performance mode, the Part Vibrato Delay parameter (PERFORM EDIT:VIBRATO:Delay or PART EDIT:VIBRATO:Vibrato Delay)
will change.
4
6
General Purpose Controller 5 (Controller number 80)
Status 2nd byte 3rd byte
BnH 50H vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
vv = Control value: 00H - 7FH (0 - 127)
* The Tone Level parameter (PATCH EDIT:TVA:Tone Level or SAMPLE EDIT:TVA:Tone Level) of Tone 1 will change.
6
General Purpose Controller 6 (Controller number 81)
Status 2nd byte 3rd byte
BnH 51H vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
vv = Control value: 00H - 7FH (0 - 127)
* The Tone Level parameter (PATCH EDIT:TVA:Tone Level) of Tone 2 will change.
6
General Purpose Controller 7 (Controller number 82)
Status 2nd byte 3rd byte
BnH 52H vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
vv = Control value: 00H - 7FH (0 - 127)
* The Tone Level parameter (PATCH EDIT:TVA:Tone Level) of Tone 3 will change.
6
General Purpose Controller 8 (Controller number 83)
Status 2nd byte 3rd byte
BnH 53H vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
vv = Control value: 00H - 7FH (0 - 127)
* The Tone Level parameter (PATCH EDIT:TVA:Tone Level) of Tone 4 will change.
6
Portamento control (Controller number 84)
Status 2nd byte 3rd byte
BnH 54H kkH
n = MIDI channel number: 0H - FH (ch.1 - 16)
kk = source note number: 00H - 7FH (0 - 127)
* A Note-on received immediately after a Portamento Control message will change continuously in pitch, starting from the
pitch of the Source Note Number.
* If a voice is already sounding for a note number identical to the Source Note Number, this voice will continue sounding
(i.e., legato) and will, when the next Note-on is received, smoothly change to the pitch of that Note-on.
* The rate of the pitch change caused by Portamento Control is determined by the Portamento Time value.
6
Effect 1 (Reverb Send Level) (Controller number 91)
Status 2nd byte 3rd byte
BnH 5BH vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
vv = Reverb Send Level: 00H - 7FH (0 - 127)
* In Performance mode, the Part Reverb Send Level parameter (PERFORM EDIT:OUTPUT:Rev or PART EDIT:OUTPUT:Rev Send Level)
will change.
6
Effect 3 (Chorus Send Level) (Controller number 93)
Status 2nd byte 3rd byte
BnH 5DH vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
vv = Chorus Send Level: 00H - 7FH (0 - 127)
* In Performance mode, the Part Chorus Send Level parameter (PERFORM EDIT:OUTPUT:Cho or PART EDIT:OUTPUT:Cho Send Level)
will change.
6
RPN MSB/LSB (Controller number 100, 101)
Status 2nd byte 3rd byte
BnH 65H mmH
BnH 64H llH
n = MIDI channel number: 0H - FH (ch.1 - 16)
mm = upper byte (MSB) of parameter number specied by RPN
ll = lower byte (LSB) of parameter number specied by RPN
<<< RPN >>>
Control Changes include RPN (Registered Parameter Numbers), which are extended.
When using RPNs, rst RPN (Controller numbers 100 and 101; they can be sent in any order) should be sent in order to
select the parameter, then Data Entry (Controller numbers 6 and 38) should be sent to set the value. Once RPN messages are
received, Data Entry messages that is received at the same MIDI channel after that are recognized as changing toward the
value of the RPN messages. In order not to make any mistakes, transmitting RPN Null is recommended after setting parameters
you need.
5
This device receives the following RPNs.
RPN Data entry
MSB, LSB MSB, LSB Notes
00H, 00H mmH, llH Pitch Bend Sensitivity
mm: 00H - 18H (0 - 24 semitones)
ll: ignored (processed as 00H)
Up to 2 octave can be specied in semitone steps.
* In Performance mode, the Part Pitch Bend Range parameter (PERFORM EDIT:PITCH:Bend or PART EDIT:PITCH:Bend Range) will
change.
00H, 01H mmH, llH Channel Fine Tuning
mm, ll: 20 00H - 40 00H - 60 00H
(-4096 x 100 / 8192 - 0 - +4096 x 100 / 8192 cent)
* In Performance mode, the Part Fine Tune parameter (PERFORM EDIT:PITCH:Fine or PART EDIT:PITCH:Fine Tune) will change.
00H, 02H mmH, llH Channel Coarse Tuning
mm: 10H - 40H - 70H (-48 - 0 - +48 semitones)
ll: ignored (processed as 00H)
* In Performance mode, the Part Coarse Tune parameter (PERFORM EDIT:PITCH:Crs or PART EDIT:PITCH:Coarse Tune) will change.
00H, 05H mmH, llH Modulation Depth Range
mm, ll: 00 00H - 00 06H (0 - 16384 x 600 / 16384 cent)
* Not received in Patch mode.
7FH, 7FH ---, --- RPN null
RPN and NRPN will be set as “unspecied.” Once this setting has been made, subsequent Parameter values
that were previously set will not change.
mm, ll: ignored
7
Program Change
Status 2nd byte
CnH ppH
n = MIDI channel number: 0H - FH (ch.1 - 16)
pp = Program number: 00H - 7FH (prog.1 - prog.128)
* Not received in Performance mode when the Receive Program Change parameter (PERFORM EDIT:MIDI:PC or PART EDIT:MIDI:PC) is
OFF.
7
Channel Pressure
Status 2nd byte
DnH vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
vv = Channel Pressure: 00H - 7FH (0 - 127)
* Not received in Performance mode when the Receive Channel Pressure parameter (PERFORM EDIT:MIDI:CA or PART EDIT:MIDI:CAFT)
is OFF.
7
Pitch Bend Change
Status 2nd byte 3rd byte
EnH llH mmH
n = MIDI channel number: 0H - FH (ch.1 - 16)
mm, ll = Pitch Bend value: 00 00H - 40 00H - 7F 7FH (-8192 - 0 - +8191)
* Not received when the Tone Receive Bender parameter (PATCH EDIT:CTRL:Rx Bender) is OFF.
* Not received in Performance mode when the Receive Bender parameter (PERFORM EDIT:MIDI:PB or PART EDIT:MIDI:BEND) is OFF.
9
Channel Mode Messages
* Not received in Performance mode when the Receive Switch parameter (PERFORM EDIT:LEVEL/CH:RxSw or PART EDIT:LEVEL/CH:Rx
Switch) is OFF.
7
All Sounds Off (Controller number 120)
Status 2nd byte 3rd byte
BnH 78H 00H
n = MIDI channel number: 0H - FH (ch.1 - 16)
* When this message is received, all notes currently sounding on the corresponding channel will be turned off.
7
Reset All Controllers (Controller number 121)
Status 2nd byte 3rd byte
BnH 79H 00H
n = MIDI channel number: 0H - FH (ch.1 - 16)
* When this message is received, the following controllers will be set to their reset values.
6
Controller Reset value
Pitch Bend Change +/-0 (center)
Polyphonic Key Pressure 0 (off)
Channel Pressure 0 (off)
Modulation 0 (off)
Breath Type 0 (min)
Expression 127 (max)
However the controller will be at minimum.
Hold 1 0 (off)
Sostenuto 0 (off)
RPN unset; previously set data will not change
NRPN unset; previously set data will not change
7
All Notes Off (Controller number 123)
Status 2nd byte 3rd byte
BnH 7BH 00H
n = MIDI channel number: 0H - FH (ch.1 - 16)
* When All Notes Off is received, all notes on the corresponding channel will be turned off. However, if Hold 1 or
Sostenuto is ON, the sound will be continued until these are turned off.
7
OMNI OFF (Controller number 124)
Status 2nd byte 3rd byte
BnH 7CH 00H
n = MIDI channel number: 0H - FH (ch.1 - 16)
* The same processing will be carried out as when All Notes Off is received.
7
OMNI ON (Controller number 125)
Status 2nd byte 3rd byte
BnH 7DH 00H
n = MIDI channel number: 0H - FH (ch.1 - 16)
* The same processing will be carried out as when All Notes Off is received. OMNI ON will not be turned on.
7
MONO (Controller number 126)
Status 2nd byte 3rd byte
BnH 7EH mmH
n = MIDI channel number: 0H - FH (ch.1 - 16)
mm = mono number: 00H - 10H (0 - 16)
* The same processing will be carried out as when All Notes Off is received.
* In Performance mode, the Part Mono/Poly parameter (PERFORM EDIT:PITCH:Mono or PART EDIT:PITCH:Mono/Poly) will change.
7
POLY (Controller number 127)
Status 2nd byte 3rd byte
BnH 7FH 00H
n = MIDI channel number: 0H - FH (ch.1 - 16)
* The same processing will be carried out as when All Notes Off is received.
* In Performance mode, the Part Mono/Poly parameter (PERFORM EDIT:PITCH:Mono or PART EDIT:PITCH:Mono/Poly) will change.
9
System Realtime Messages
7
Active Sensing
Status
FEH
* When Active Sensing is received, the unit will begin monitoring the intervals of all further messages. While monitoring,
if the interval between messages exceeds 420 ms, the same processing will be carried out as when All Sounds Off, All
Notes Off and Reset All Controllers are received, and message interval monitoring will be halted.
9
System Exclusive Message
Status Data byte Status
F0H iiH, ddH, ......,eeH F7H
F0H: System Exclusive Message status
ii = ID number: an ID number (manufacturer ID) to indicate the manufacturer whose Exclusive message this is. Roland’s
manufacturer ID is 41H. ID numbers 7EH and 7FH are extensions of the MIDI standard; Universal Non-realtime
Messages (7EH) and Universal Realtime Messages (7FH).
dd,...,ee = data: 00H - 7FH (0 - 127)
F7H: EOX (End Of Exclusive)
Of the System Exclusive messages received by this device, the Universal Non-realtime messages and the Universal Realtime
messages and the Data Request (RQ1) messages and the Data Set (DT1) messages will be set automatically.
7
7
Universal Non-realtime System Exclusive Messages
6
Identity Request Message
Status Data byte Status
F0H 7EH, dev, 06H, 01H F7H
Byte Explanation
F0H Exclusive status
7EH ID number (Universal Non-realtime Message)
dev Device ID (dev: 10H, 7FH)
06H Sub ID#1 (General Information)
01H Sub ID#2 (Identity Request)
F7H EOX (End Of Exclusive)
* When this message is received, Identity Reply message (p. 16) will be transmitted.
6
GM1 System On
Status Data byte Status
F0H 7EH, 7FH, 09H, 01H F7H
Byte Explanation
F0H Exclusive status
7EH ID number (Universal Non-realtime Message)
7FH Device ID (Broadcast)
09H Sub ID#1 (General MIDI Message)
01H Sub ID#2 (General MIDI 1 On)
F7H EOX (End Of Exclusive)
* When this messages is received, this instrument will turn to the Performance mode.
6
GM2 System On
Status Data byte Status
F0H 7EH 7FH 09H 03H F7H
Byte Explanation
F0H Exclusive status
7EH ID number (Universal Non-realtime Message)
7FH Device ID (Broadcast)
09H Sub ID#1 (General MIDI Message)
03H Sub ID#2 (General MIDI 2 On)
F7H EOX (End Of Exclusive)
* When this messages is received, this instrument will turn to the Performance mode.
6
GM System Off
Status Data byte Status
F0H 7EH, 7F, 09H, 02H F7H
Byte Explanation
F0H Exclusive status
7EH ID number (Universal Non-realtime Message)
7FH Device ID (Broadcast)
09H Sub ID#1 (General MIDI Message)
02H Sub ID#2 (General MIDI Off)
F7H EOX (End Of Exclusive)
* When this messages is received, this instrument will return to the Performance mode.
7
Universal Realtime System Exclusive Messages
6
Master Volume
Status Data byte Status
F0H 7FH, 7FH, 04H, 01H, llH, mmH F7H
Byte Explanation
F0H Exclusive status
7FH ID number (universal realtime message)
7FH Device ID (Broadcast)
04H Sub ID#1 (Device Control)
01H Sub ID#2 (Master Volume)
llH Master Volume lower byte
mmH Master Volume upper byte
F7H EOX (End Of Exclusive)
* The lower byte (llH) of Master Volume will be handled as 00H.
* The Master Level parameter (SYSTEM:SOUND:Master Level) will change.
* The Master Tune parameter (SYSTEM:SOUND:Master Tune) will change.
6
Master Coarse Tuning
Status Data byte Status
F0H 7FH, 7FH, 04H, 04H, llH, mmH F7
Byte Explanation
F0H Exclusive status
7FH ID number (universal realtime message)
7FH Device ID (Broadcast)
04H Sub ID#1 (Device Control)
04H Sub ID#2 (Master Coarse Tuning)
llH Master Coarse Tuning LSB
mmH Master Coarse Tuning MSB
F7H EOX (End Of Exclusive)
llH: ignored (processed as 00H)
mmH: 28H - 40H - 58H (-24 - 0 - +24 [semitones])
* The Master Key Shift parameter (SYSTEM:SOUND:Master Key Shift) will change.
7
Global Parameter Control
* Not received in Patch mode.
6
Reverb Parameters
Status Data byte Status
F0H 7FH, 7FH, 04H, 05H, 01H, 01H, F7H
01H, 01H, 01H, ppH, vvH
Byte Explanation
F0H Exclusive status
7FH ID number (universal realtime message)
7FH Device ID (Broadcast)
04H Sub ID#1 (Device Control)
05H Sub ID#2 (Global Parameter Control)
01H Slot path length
01H Parameter ID width
01H Value width
01H Slot path MSB
01H Slot path LSB (Effect 0101: Reverb)
ppH Parameter to be controlled.
vvH Value for the parameter.
pp=0 Reverb Type
vv=00H Small Room
vv=01H Medium Room
vv=02H Large Room
vv=03H Medium Hall
vv=04H Large Hall
vv=08H Plate
pp=1 Reverb Time
vv=00H - 7FH 0 - 127
F7H EOX (End Of Exclusive)
9
6
Chorus Parameters
Status Data byte Status
F0H 7FH, 7FH, 04H, 05H, 01H, 01H, F7H
01H, 01H, 02H, ppH, vvH
Byte Explanation
F0H Exclusive status
7FH ID number (universal realtime message)
7FH Device ID (Broadcast)
04H Sub ID#1 (Device Control)
05H Sub ID#2 (Global Parameter Control)
01H Slot path length
01H Parameter ID width
01H Value width
01H Slot path MSB
02H Slot path LSB (Effect 0102: Chorus)
ppH Parameter to be controlled.
vvH Value for the parameter.
pp=0 Chorus Type
vv=0 Chorus1
vv=1 Chorus2
vv=2 Chorus3
vv=3 Chorus4
vv=4 FB Chorus
vv=5 Flanger
pp=1 Mod Rate
vv=00H - 7FH 0 - 127
pp=2 Mod Depth
vv=00H - 7FH 0 - 127
pp=3 Feedback
vv=00H - 7FH 0 - 127
pp=4 Send To Reverb
vv=00H - 7FH 0 - 127
F7H EOX (End Of Exclusive)
6
Channel Pressure
Status Data byte Status
F0H 7FH, 7FH, 09H, 01H, 0nH, ppH, rrH F7H
Byte Explanation
F0H Exclusive status
7FH ID number (universal realtime message)
7FH Device ID (Broadcast)
09H Sub ID#1 (Controller Destination Setting)
01H Sub ID#2 (Channel Pressure)
0nH MIDI Channel (00 - 0F)
ppH Controlled parameter
rrH Controlled range
pp=0 Pitch Control
rr=28H - 58H -24 - +24 [semitones]
pp=1 Filter Cutoff Control
rr=00H - 7FH -9600 - +9450 [cents]
pp=2 Amplitude Control
rr=00H - 7FH 0 - 200%
pp=3 LFO Pitch Depth
rr=00H - 7FH 0 - 600 [cents]
pp=4 LFO Filter Depth
rr=00H - 7FH 0 - 2400 [cents]
pp=5 LFO Amplitude Depth
rr=00H - 7FH 0 - 100%
F7H EOX (End Of Exclusive)
10
6
Controller
Status Data byte Status
F0H 7FH, 7FH, 09H, 03H, 0nH, ccH, ppH, rrH F7H
Byte Explanation
F0H Exclusive status
7FH ID number (universal realtime message)
7FH Device ID (Broadcast)
09H Sub ID#1 (Controller Destination Setting)
03H Sub ID#2 (Control Change)
0nH MIDI Channel (00 - 0F)
ccH Controller number (01 - 1F, 40 - 5F)
ppH Controlled parameter
rrH Controlled range
pp=0 Pitch Control
rr=28H - 58H -24 - +24 [semitones]
pp=1 Filter Cutoff Control
rr=00H - 7FH -9600 - +9450 [cents]
pp=2 Amplitude Control
rr=00H - 7FH 0 - 200%
pp=3 LFO Pitch Depth
rr=00H - 7FH 0 - 600 [cents]
pp=4 LFO Filter Depth
rr=00H - 7FH 0 - 2400 [cents]
pp=5 LFO Amplitude Depth
rr=00H - 7FH 0 - 100%
F7H EOX (End Of Exclusive)
6
Scale/Octave Tuning Adjust
Status Data byte Status
F0H 7EH, 7FH, 08H, 08H, ffH, ggH, hhH, ssH... F7
Byte Explanation
F0H Exclusive status
7EH ID number (Universal Non-realtime Message)
7FH Device ID (Broadcast)
08H Sub ID#1 (MIDI Tuning Standard)
08H Sub ID#2 (scale/octave tuning 1-byte form)
ffH Channel/Option byte 1
bits 0 to 1 = channel 15 to 16
bit 2 to 6 = Undened
ggH Channel byte 2
bits 0 to 6 = channel 8 to 14
hhH Channel byte 3
bits 0 to 6 = channel 1 to 7
ssH 12 byte tuning offset of 12 semitones from C to B
00H = -64 [cents]
40H = 0 [cents] (equal temperament)
7FH = +63 [cents]
F7H EOX (End Of Exclusive)
6
Key-based Instrument Controllers
Status Data byte Status
F0H 7FH, 7FH, 0AH, 01H, 0nH, kkH, nnH, vvH F7H
Byte Explanation
F0H Exclusive status
7FH ID number (universal realtime message)
7FH Device ID (Broadcast)
0AH Sub ID#1 (Key-Based Instrument Control)
01H Sub ID#2 (Controller)
0nH MIDI Channel (00 - 0FH)
kkH Key Number
nnH Control Number
vvH Value
nn=07H Level
vv=00H - 7FH 0 - 200% (Relative)
nn=0AH Pan
vv=00H - 7FH Left - Right (Absolute)
nn=5BH Reverb Send
vv=00H - 7FH 0 - 127 (Absolute)
nn=5D Chorus Send
vv=00H - 7FH 0 - 127 (Absolute)
: :
F7H EOX (End Of Exclusive)
* This parameter affects drum instruments only.
11
7
Data Transmission
This instrument can use exclusive messages to exchange many varieties of internal settings with other devices.
The model ID of the exclusive messages used by this instrument is 00H 00H 3AH.
6
Data Request 1 (RQ1)
This message requests the other device to transmit data. The address and size indicate the type and amount of data that is
requested.
When a Data Request message is received, if the device is in a state in which it is able to transmit data, and if the
address and size are appropriate, the requested data is transmitted as a Data Set 1 (DT1) message. If the conditions are
not met, nothing is transmitted.
Status Data byte Status
F0H 41H, dev, 00H, 00H, 3AH, 11H, aaH, bbH, F7H
ccH, ddH, ssH, ttH, uuH, vvH, sum
Byte Remarks
F0H Exclusive status
41H ID number (Roland)
dev device ID (dev: 10H, 7FH)
00H model ID #1 (XPS-30)
00H model ID #2 (XPS-30)
3AH model ID #3 (XPS-30)
11H command ID (RQ1)
aaH address MSB
bbH address
ccH address
ddH address LSB
ssH size MSB
ttH size
uuH size
vvH size LSB
sum checksum
F7H EOX (End Of Exclusive)
* The size of data that can be transmitted at one time is xed for each type of data. And data requests must be made with a
xed starting address and size. Refer to the address and size given in “Parameter Address Map” (p. 19).
* For the checksum, refer to p. 64.
6
Data set 1 (DT1)
Status Data byte Status
F0H 41H, dev, 00H, 00H, 3AH, 12H, aaH, bbH, F7H
ccH, ddH, eeH, ... ffH, sum
Byte Explanation
F0H Exclusive status
41H ID number (Roland)
dev Device ID (dev: 10H, 7FH)
00H Model ID #1 (XPS-30)
00H Model ID #2 (XPS-30)
3AH Model ID #3 (XPS-30)
12H Command ID (DT1)
aaH Address MSB: upper byte of the starting address of the data to be sent
bbH Address: upper middle byte of the starting address of the data to be sent
ccH Address: lower middle byte of the starting address of the data to be sent
ddH Address LSB: lower byte of the starting address of the data to be sent.
eeH Data: the actual data to be sent. Multiple bytes of data are transmitted in order starting from the address.
:
ffH Data
sum Checksum
F7H EOX (End Of Exclusive)
* The amount of data that can be transmitted at one time depends on the type of data, and data will be transmitted from the
specied starting address and size. Refer to the address and size given in “Parameter Address Map” (p. 19).
* Data larger than 256 bytes will be divided into packets of 256 bytes or less, and each packet will be sent at an interval
of about 20 ms.
* Regarding the checksum, please refer to p. 64.
Status Data byte Status
F0H 41H, dev, 42H, 12H, aaH, bbH, ccH, F7H
ddH, ... eeH, sum
Byte Explanation
F0H Exclusive status
41H ID number (Roland)
dev Device ID (dev: 10H, 7FH)
42H Model ID (GS)
12H Command ID (DT1)
aaH Address MSB: upper byte of the starting address of the transmitted data
12
bbH Address: middle byte of the starting address of the transmitted data
ccH Address LSB: lower byte of the starting address of the transmitted data
ddH Data: the actual data to be transmitted. Multiple bytes of data are transmitted starting from the address.
:
eeH Data
sum Checksum
F7H EOX (End Of Exclusive)
* The amount of data that can be transmitted at one time depends on the type of data, and data will be transmitted from the
specied starting address and size. Refer to the address and size given in “Parameter Address Map” (p. 19).
* Data larger than 256 bytes will be divided into packets of 256 bytes or less, and each packet will be sent at an interval
of about 20 ms.
* Regarding the checksum, please refer to p. 64.
2. Data Transmission (Sound Source Section)
9
Channel Voice Messages
7
Note off
Status 2nd byte 3rd byte
8nH kkH vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
kk = note number: 00H - 7FH (0 - 127)
vv = note off velocity: 00H - 7FH (0 - 127)
7
Note on
Status 2nd byte 3rd byte
9nH kkH vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
kk = note number: 00H - 7FH (0 - 127)
vv = note on velocity: 01H - 7FH (1 - 127)
7
Control Change
* By selecting a controller number that corresponds to the setting of parameters of controllers, the XPS-30 can transmit
any control change message.
6
Bank Select (Controller number 0, 32)
Status 2nd byte 3rd byte
BnH 00H mmH
BnH 20H llH
n = MIDI channel number: 0H - FH (ch.1 - 16)
mm, ll = Bank number: 00 00H - 7F 7FH (bank.1 - bank.16384)
* These messages are transmitted when Patch, Drum Kit, Performance, or Pattern is selected.
6
Modulation (Controller number 1)
Status 2nd byte 3rd byte
BnH 01H vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
vv = Modulation depth: 00H - 7FH (0 - 127)
6
Breath type (Controller number 2)
Status 2nd byte 3rd byte
BnH 02H vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
vv = Control value: 00H - 7FH (0 - 127)
6
Portamento Time (Controller number 5)
Status 2nd byte 3rd byte
BnH 05H vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
vv = Portamento Time: 00H - 7FH (0 - 127)
6
Data Entry (Controller number 6, 38)
Status 2nd byte 3rd byte
BnH 06H mmH
BnH 26H llH
n = MIDI channel number: 0H - FH (ch.1 - 16)
mm, ll = the value of the parameter specied by RPN/NRPN