Parallax P2 Edge Module - Datasheet

Lookup Table, Streamer, and Misc Instructions
Instruction
Description
Clocks
Cog & LUT / Hub
Lookup Table
RDLUT D,{#}S/P {WC/WZ/WCZ}
Read data from LUT address {#}S/PTRx into D. C = MSB of data. *
3
SETLUTS {#}D
If D[0] = 1 then enable LUT sharing, where LUT writes within the adjacent odd/even companion cog are copied
to this cog's LUT.
2
WRLUT {#}D,{#}S/P
Write D to LUT address {#}S/PTRx.
2
Streamer
GETXACC D
Get the streamer's Goertzel X accumulator into D and the Y accumulator into the next instruction's S, clear
accumulators.
2
SETXFRQ {#}D
Set streamer NCO frequency to D.
2
XCONT {#}D,{#}S
Buer new streamer command to be issued on final NCO rollover of current command, continuing phase.
2+
XINIT {#}D,{#}S
Issue streamer command immediately, zeroing phase.
2
XSTOP
Stop streamer immediately.
2
XZERO {#}D,{#}S
Buer new streamer command to be issued on final NCO rollover of current command, zeroing phase.
2+
Miscellaneous
AUGD #n
Queue #n to be used as upper 23 bits for next #D occurrence, so that the next 9-bit #D will be augmented to 32
bits.
2
AUGS #n
Queue #n to be used as upper 23 bits for next #S occurrence, so that the next 9-bit #S will be augmented to 32
bits.
2
GETCT D {WC}
Get CT[31:0] or CT[63:32] if WC into D. GETCT WC + GETCT gets full CT. CT=0 on reset, CT++ on every clock. C =
same.
2
GETRND WC/WZ/WCZ
Get RND into C/Z. C = RND[31], Z = RND[30], unique per cog.
2
GETRND D {WC/WZ/WCZ}
Get RND into D/C/Z. RND is the PRNG that updates on every clock. D = RND[31:0], C = RND[31], Z = RND[30],
unique per cog.
2
NOP
No operation.
2
POP D {WC/WZ/WCZ}
Pop stack (K). D = K. C = K[31]. *
2
PUSH {#}D
Push D onto stack.
2
SETQ {#}D
Set Q to D. Use before RDLONG/WRLONG/WMLONG to set block transfer. Also used before
MUXQ/COGINIT/QDIV/QFRAC/QROTATE/WAITxxx.
2
SETQ2 {#}D
Set Q to D. Use before RDLONG/WRLONG/WMLONG to set LUT block transfer.
2
WAITX {#}D {WC/WZ/WCZ}
Wait 2 + D clocks if no WC/WZ/WCZ. If WC/WZ/WCZ, wait 2 + (D & RND) clocks. C/Z = 0.
2 + D
Copyright © Parallax Inc. 2021/05/27 ▪ Parallax Propeller 2 (P2X8C4M64P) Datasheet ▪ Page 43