LSI 21003 - Manual (Page 52)

3-10 Technical Specifications
Table 3.6 SCSI Connector J4, Channel A, Internal
Signal Name Pin Signal Name Pin Signal Name Pin
GND 1 SDP/ 18 GND 35
SD0/ 2 GND 19 SBSY/ 36
GND 3 GND 20 GND 37
SD1/ 4 GND 21 SACK/ 38
GND 5 CPRSNT_C
1
1. CPRSNT_C is used to sense the connection of a standard SCSI device
by sensing SCSI standard GND on this pin.
22 GND 39
SD2/ 6 N/C 23 SRST/ 40
GND 7 N/C 24 GND 41
SD3/ 8 N/C 25 SMSG/ 42
GND 9 TERMPWR 26 GND 43
SD4/ 10 N/C 27 SSEL/ 44
GND 11 N/C 28 GND 45
SD5/ 12 GND 29 SC_D/ 46
GND 13 GND 30 GND 47
SD6/ 14 GND 31 SREQ/ 48
GND 15 SATN/ 32 GND 49
SD7/ 16 GND 33 SI_O/ 50
GND 17 GND 34