Yamaha PortaSound PSS-795 Owner's Manual page 48

SONG MEMORY DATA Note: following data bytes are to be divided into 4 bit bit data and sent as less
0000H SONG HEADER
significant 4 bits of data part. Significant 4 bits are sent first.
song #1 DATA
song #2 DATA
song #3 DATA
song #4 DATA
song #5 DATA
song #6 DATA
song #7 DATA
702FH song #8 DATA
Song Memory data consists of
a Song Header and 8 song
data. The size is 702FH bytes
fixed.
The length of a header, 32
bytes from the top of song data
is fixed. The length of each
song data is variable. An
unrecorded area, which is the
area between Write Position
Data and Read Position Data,
is located somewhere in one of
these 8 song data as long as
there remains a capacity for
further recording. When the
bulk data is damped, this
unrecorded area exists in the
song which has been selected
by the PSS-795 panel controls.
The position of this area in the
song is shown by the measure
number (bar number) as well.
However, once you upload the
bulk data back onto the PSS-
795, the position of the area will
be reset to the top of the song.
46
er Zs aat ER к Address of Top of Record for selected song (XXXXH)
keen en mm Write Position Pointer (address of write position)
0003H MSB (yyyyH)
bas БВ Eee Read Position Pointer (address of read position)
0005H MSB (zzzzH)
0006H Track status of song #1
0007H Track status of song #2
0008H Track status of song #3 Track status:
0009H Track status of song #4
000AH Track status of song #5 bit 7 |bite |bit5 |bit4 |bit3 |bit2 [bit 1 [bito
000BH Track status of song #6 маооу |миооу a |mELODY 3| meLoov deeg МЕСТОН | pap | N a
000CH Track status of song #7 j Ch.5 Ch.6 Ch.7 Ch.8 Ch.9 Ch.1-4 Ch.16 -
000DH Track status of song #8 status flag: 1=On, 0=Off
MIDI Channels 1 to 16 are assigned respectively
to corresponding tracks as shown above. In
Dummy Channel messages exist in the tracks: MELO
Any data is OK. to 5, VECTOR SYNTH, and PAD, their status
(18 bytes) flags should be 1. In case chord data exist in the
AUTO ACCOMP. track, its status flag should also
be 1.
yyyyH
11110000
00000001
ABSOLUTE TEMPO
ABSOLUTE TEMPO
Top of Record
Song number (if) (this case: 1)
"Initial tempo of this song
RECORDED DATA
Write Position Data
UNRECORDED AREA
Data has no meaning.
Read Position Data
RECORDED DATA
11110010
11110000
Next Song Data
{this case: for Song #2)