SAA7380GP Philips Semiconductors, SAA7380GP Datasheet - Page 24

• Manufacturer Part Number: SAA7380GP
• Description: Error correction and host interface IC for CD-ROM ELM
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 22 Data transfer control register bits
Table 23 TRANT transfer bits
In the Sanyo and Oak compatibility modes the only transfers are memory-to-host, host-to-memory, sub-CPU-to-memory,
and memory-to-sub-CPU. Setting the TRANT bits to any other settings while in these host modes will cause undefined
results.
1996 Apr 25
BIT 2
Error correction and host interface IC for
CD-ROM (ELM)
0
0
0
0
1
1
1
BIT
7
6
5
4
3
2
1
0
TRANT
BIT 1
0
0
1
1
0
0
1
res.
DMAMODE DMA Mode Select
UDMA
SUBIEN
RDRV
TRANT
FLAG
BIT 0
0
1
0
1
0
1
x
sub-CPU
sub-CPU
reserved
Use DMA
SUBI Enable
Real Drive Select
memory
memory
FROM
host
host
VERBOSE
sub-CPU
sub-CPU
reserved
memory
memory
host
host
TO
reserved
logic 0 = single-word; logic 1 = multi-word
logic 1 = DMA; logic 0 = PIO
logic 1 = interrupt enabled
ATAPI drive number
see Table 23
MAXIMUM BYTES
24
32767 (Sanyo)
32767 (Sanyo)
65535 (ATAPI)
65535 (ATAPI)
reserved
12
12
DESCRIPTION
PIO; DBC not used, always 12 bytes
DMA and PIO
DMA and PIO
DMA and PIO
Preliminary specification
NOTES
SAA7380