參數(shù)資料
型號: SYM53C140
廠商: LSI CORP
元件分類: 其它接口
英文描述: Ultra2 SCSI Bus Expander(Ultra2 SCSI總線擴展器)
中文描述: SPECIALTY INTERFACE CIRCUIT, PQFP160
封裝: 32 MM, PLASTIC, QFP-160
文件頁數(shù): 20/68頁
文件大小: 928K
代理商: SYM53C140
2-6
Functional Descriptions
2.1.7 SCSI Signal Descriptions
Figure 2.2 shows the SYM53C140 signal grouping. A description of the
signal groups follow. For a description of a specific signal, see
Section 3.1, “Signal Descriptions”
in
Chapter 3
. For a signal electrical
characteristics, see
Section 3.2, “Electrical Characteristics”
in
Chapter 3
.
For SCSI bus signal timing, see
Section 3.2.4, “SCSI Interface Timing”
in
Chapter 3
.
Figure 2.2
SYM53C140 Signal Grouping
2.1.7.1 Data and Parity (SD and SDP)
The signals named A_SD[15:0] and A_SDP[1:0] are the data and parity
signals from the A Side, and B_SD[15:0] and B_SDP[1:0] are the data
and parity signals from the B Side of the SYM53C140. These signals are
sent and received from the SYM53C140 via SCSI compatible drivers and
receiver logic designed into the SYM53C140 interfaces. This logic
provides the necessary drive, sense thresholds, and input hysteresis to
function correctly in a SCSI bus environment.
A_SSEL+
A_SSEL-
A_SBSY+
A_SBSY-
A_SRST+
A_SRST-
A_SREQ+
A_SREQ-
A_SACK+
A_SACK-
A_SMSG+
A_SMSG-
A_SCD+
A_SCD-
A_SIO+
A_SIO-
A_SATN+
A_SATN-
A_SDP[1:0]+
A_SDP[1:0]-
A_SD[15:0]+
A_SD[15:0]-
A_DIFFSENS
A_HVD_MODE
RESET/
WS_ENABLE
XFER_ACTIVE
CLOCK
B_SSEL+
B_SSEL-
B_SBSY+
B_SBSY-
B_SRST+
B_SRST-
B_SREQ+
B_SREQ-
B_SACK+
B_SACK-
B_SMSG+
B_SMSG-
B_SCD+
B_SCD-
B_SIO+
B_SIO-
B_SATN+
B_SATN-
B_SDP[1:0]+
B_SDP[1:0]-
B_SD[15:0]+
B_SD[15:0]-
B_DIFFSENS
B_HVD_MODE
BSY_LED
A-Side
LVD, HVD, or SE
SCSI Interface
B-Side
LVD, HVD, or SE
SCSI Interface
Control Signals
SYM53C140
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