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: 3/99页
文件大小: 666K
代理商: S1R72105F00A000
S1R72105 Technical Manual
Rev.1.0
EPSON
5
Pin No.
Symbol
I/O
Functional description
Remarks
CPU interface-related matters (19)
19
AD0
I
Address input pin (AD0 to AD5)
20
AD1
21
AD2
22
AD3
23
AD4
24
AD5
10
DB0
I/O
Data pin (DB0 to DB7)
11
DB1
12
DB2
13
DB3
15
DB4
16
DB5
17
DB6
18
DB7
Drive capability 3mA
31
XCS
Is
Chip select signal for accessing internal register
30
XINTU
O
USB interrupt request output signal
Drive capability 6mA
29
XINTS
O
SCSI interrupt request output signal
Drive capability 6mA
28
XRD
Is
Data read signal
27
XWR
Is
Data write signal
Others (17)
59
OSCIN
I
Input to built-in oscillation circuit (40MHz or 20MHz)
60
OSCOUT
O
Output from built-in oscillation circuit
8
TESTMON
O
Monitor output for testing (open LOW output usually)
Drive capability 2mA
32
XRESET
Ispu
System reset input signal
9
TESTEN
Ipd
Pin for testing (connected to LOW (GND) usually)
63
CLKSEL
I
Input clock and PLL operation selection
HIGH (LVDD): Generates clock (SCSI_40MHz,USB_48MHz)
in internal PLL.
20MHz oscillation in OSCIN/OUT or input
20MHz(3.3V) to OSCIN
EXCLK is connected to LOW (GND) or HIGH
(LVDD).
LOW (GND): PLL stop (power-down) , external clock in
operation
40MHz oscillation in OSCIN/OUT or input
40MHz(3.3V) to OSCIN
Input 48MHz(3.3V) to EXCLK
62
EXCLK
I
External clock input pin for 3.3V level USB
(Connected to LOW (GND) or HIGH (LVDD) while it is not
used).
64
VC
O
For instructions as to how to connect internal VCO control
pins, refer to the description of PLL circuit.
HVDD:5V (5)
14,33,44,51,
67,77,82,86,
90,94,98
HVDD
P
Power supply for 5V interface
LVDD:3.3V (6)
1,26,61,76
LVDD
P
Power supply for internal operation
VSS:0V (17)
4,25,38,50,
58,65,69,72,
75,79,84,88,
92,96,100
VSS
P
GND
(Note)
I
: Input
O
: Output
Is
: Schmitt input
Ood
: Open-drain output
Ipu
: Pull-up input
Otr
: Try state output
Ispu
: Pull-up Schmitt input
Ipd
: Pull-down input
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