參數(shù)資料
型號(hào)： SP37E760-MD
廠商： STANDARD MICROSYSTEMS CORP
元件分類： 外設(shè)及接口
英文描述： 3.3 V I/O CONTROLLER FOR EMBEDDED APPLICATIONS
中文描述： MULTIFUNCTION PERIPHERAL, PQFP100
封裝： TQFP-100
文件頁(yè)數(shù)： 11/78頁(yè)
文件大小： 510K
代理商： SP37E760-MD
SMSC DS – SP37E760
Page 11
Rev. 04/13/2001
PIN #
TQFP
57
QFP
59
NAME
SYMBOL
BUFFER
TYPE
DESCRIPTION
Printer
Selected
Status
SLCT
nERROR
PD0-4
PD5
PD6
PD7
I/OD12
This high active output from the printer indicates that
it has power on. Bit 4 of the Printer Status Register
reads the SLCT input. Refer to Parallel Port
description for use of this pin in ECP and EPP mode.
73
75
nError
I/OD12
A low on this input from the printer indicates that there
is a error condition at the printer. Bit 3 of the Printer
Status register reads the nERR input. Refer to
Parallel Port description for use of this pin in ECP and
EPP mode.
Port Data 0-4
Port Data 5
Port Data 6
Port Data 7
69-66, 64
71-68, 66 Port Data 0-
Port Data 4
IOP14/IS
63
62
65
64
Port Data 5
Port Data 6
IOP14
IOP14/
OD12
61
63
Port Data 7
IOP14
MISC
ICLK
18
20
14.318 MHz
Input Clock
Address X/
Interrupt
Request B
CLK14
The external connection to a single source 14.318
MHz clock.
Active low address decode out: used to decode a 1,
8, or 16 byte address block. (An external pull-up is
required). Refer to Configuration registers CR03,
CR08 and CR09 for more information.
The interrupt request from a logical device or IRQIN
may be output on IRQ_B. Refer to the configuration
registers for more information. If EPP or ECP Mode
is enabled, this output is pulsed low and released to
allow sharing of interrupts.
92
94
nADRX
IRQ_B
O12/ OD12
56
58
Power Good
PWRGD
IRQIN
I/O4
This active high input indicates that the power (VCC)
is valid. For device operation PWRGD must be
active. When PWRGD is inactive, all inputs are
disconnected and put into a low power mode; all
outputs are put into high impedance. The contents af
all registers are preserved as long as VCC is valid.
The output driver current drain when PWRGD is
inactive mode drops to I
STBY
- standby current.
96
98
External
Interrupt Input
IS
This pin is used to steer an interrupt signal from an
external device onto one of eight IRQ outputs IRQA-
H.
POWER INTERFACE
Positive Supply Voltage.
Ground Supply.
13,70
4, 10, 11,
12, 14, 15,
23, 45,
65, 93
1, 2, 3, 5,
6, 7, 8, 9,
16, 21, 24,
99, 100
15,72
6, 12, 13,
14, 16, 17,
25, 47,
67, 95
1, 2, 3, 4,
5, 7, 8, 9,
10, 11, 18,
23, 26,
Power
Ground
VCC
VSS
Non Connect
NC
Non-Connected Pins
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