Philips Semiconductors
1394 full duplex AV link layer controller
Preliminary specification
PDI1394L21
13.2.14 Isochronous Receiver Memory Status (IRXMEM) – Base Address: 0x058
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Reset Value 0x00000003
Bit 6:
R
IRM100LFT: FIFO is 100 quadlets from full.
Bit 5:
Bit 4:
Bit 3:
R
IRM256LFT: FIFO is 256 quadlets from full.
R
IRM512LFT: FIFO is 1/2 full.
R
IRXMF: Full: no space available.
Bit 2:
R
IRXMAF: Almost full: exactly one quadlet of storage available.
Bit 1:
R
IRXM5AV: At least 5 more quadlets of storage available.
Bit 0:
R
RXME: Memory bank is empty (no data committed).
SV00917
1999 Aug 06
40