参数资料
型号: S1R72105F00A000
元件分类: 总线控制器
英文描述: SCSI BUS CONTROLLER, PQFP100
封装: 0.50 MM PITCH, PLASTIC, QFP15-100
文件页数: 2/99页
文件大小: 666K
代理商: S1R72105F00A000
S1R72105 Technical Manual
4
EPSON
Rev.1.0
5.
PIN DESCRIPTION
The control signal with “X” at the head of a pin name is LOW-active.
Pin No.
Symbol
I/O
Functional description
Remarks
SCSI interface-related matters (18)
99
XSDB0
97
XSDB1
95
XSDB2
93
XSDB3
91
XSDB4
89
XSDB5
87
XSDB6
85
XSDB7
SCSI data signal (SD0 to SD7)
Drive capability 48mA
83
XSDBP
Is/Otr
SCSI data parity signal
Drive capability 48mA
81
XSATN
I/Ood SCSI ATN signal
Drive capability 48mA
80
XSBSY
I/Ood SCSI BSY signal
Drive capability 48mA
78
XSACK
Is/Otr SCSI ACK signal
Drive capability 48mA
74
XSRST
I/Ood SCSI RST signal
Drive capability 48mA
73
XSMSG
I/Ood SCSI MSG signal
Drive capability 48mA
71
XSSEL
I/Ood SCSI SEL signal
Drive capability 48mA
70
XSCD
I/Ood SCSI C/D signal
Drive capability 48mA
68
XSREQ
Is/Otr SCSI REQ signal
Drive capability 48mA
66
XSIO
I/Ood SCSI I/O signal
Drive capability 48mA
USB interface-related matters (5)
2
DM
I/O
USB data port
3
DP
I/O
USB data port
(Configure to pull up to 3.3V by a 1.5k
resistor externally.
The register can be controlled by “XPUENB.”)
5
XPUENB
Ood
Control signal connecting a 1.5k
pull-up resistor to “DP”
pin Ood.
VBUS = 5V and HIGH EnPullUp(USBCommon_b1) brings
about LOW output.
Drive capability 6mA
6
VBUS
Is
USB bus power detection input (Pull down externally).
7
XUSBOE
O
LOW output while this IC outputs a signal to DP and DM
pins.
Drive capability 3mA
Port interface-related matters (20)
35
XPRD
Is/O
Port read signal
Drive capability 3mA
36
XPWR
Is/O
Port write signal
Drive capability 3mA
37
PDREQ
Is/O
Port DMA request signal (also operable in negative logic)
Drive capability 6mA
34
XPDACK
Is/O
Port DMA ACK signal
Drive capability 3mA
40
PD0
42
PD1
45
PD2
47
PD3
49
PD4
53
PD5
55
PD6
57
PD7
56
PD8
54
PD9
52
PD10
48
PD11
46
PD12
43
PD13
41
PD14
39
PD15
I/O
Port DMA data bus signal (PD0 to 15)
Drive capability 3mA
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