Figure3.3 lsi53c876 functional signal grouping, Lsi53c876 functional signal grouping, Figure 3.3 – Avago Technologies LSI53C876E User Manual

Page 76: 4 signal descriptions

3-4

Signal Descriptions

Figure 3.3

LSI53C876 Functional Signal Grouping

CLK
RST

AD[31:0]
C_BE/[3:0]
PAR

FRAME/
TRDY/
IRDY/
STOP/
DEVSEL/
IDSEL

REQ/
GNT/

SERR/

PERR/

SCLK

A_SD[15:0]/

A_SDP[1:0]/

A_SC_D/

A_SI_O/

A_SMSG/

A_SREQ/

A_SACK/
A_SBSY/

A_SATN/

A_SRST/

A_SSEL/

Address

System

Interface

Arbitration

Error

SCSI Function A
SCSI Bus
Interface

ROM/Flash

Memory

Interface

LSI53C876

PCI Bus

Interface

SCSI

Function B

GPIO

MWE/

MCE/

MOE_TESTOUT

MAS0/
MAS1/
MAD[7:0]

INTA/
INTB/

Interrupt

A_GPIO0_FETCH/
A_GPIO1_MASTER/
A_GPIO2
A_GPIO3
A_GPIO4

A_SCTRL/

SCSI

Function A

GPIO

B_GPIO0_FETCH/
B_GPIO1_MASTER/
B_GPIO2
B_GPIO3
B_GPIO4

B_SD[15:0]/

B_SDP[1:0]/

B_SC_D/

B_SI_O/

B_SMSG/

B_SREQ/

B_SACK/
B_SBSY/

B_SATN/

B_SRST/

B_SSEL/

A_SDIR[15:0]/

A_SDIRP0/1

A_BSYDIR

A_SELDIR

A_RSTDIR

A_DIFFSENS

A_IGS

A_TGS

TESTIN/

TCK

TMS

TDI

TDO

SCSI Function B
SCSI Bus
Interface

SCSI Function A
Differential
Control

Test
Interface

B_SCTRL/

B_SDIR[15:0]/

B_SDIRP0/1

B_BSYDIR

B_SELDIR

B_RSTDIR

B_DIFFSENS

B_IGS

B_TGS

SCSI Function B
Differential
Control
(256 BGA only)

and Data

Control

Reporting