REV. 5.1.0 PRINTER PORT INTERFACE PD7 PD6 PD5 PD4 PD3 PD2 PD1 PD0 38 37 36 35 34 " />
參數(shù)資料
型號： ST78C36CJ44-F
廠商： Exar Corporation
文件頁數(shù)： 22/27頁
文件大小： 0K
描述： IC UART FIFO 16B 44PLCC
標準包裝： 27
特點： *
FIFO's： 16 字節(jié)
規(guī)程： 打印機
電源電壓： 5V
帶并行端口： 是
安裝類型： 表面貼裝
封裝/外殼： 44-LCC（J 形引線）
供應(yīng)商設(shè)備封裝： 44-PLCC（16.59x16.59）
包裝： 管件
ST78C36/36A
4
ECP/EPP PARALLEL PRINTER PORT WITH 16-BYTE FIFO
REV. 5.1.0
PRINTER PORT INTERFACE
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
38
37
36
35
34
33
32
31
45
44
43
42
41
40
39
38
I/O
Bi-directional parallel port (three-state) to transfer data in or out of the
ST78C36 parallel port. PD[7:0] are latched during output mode. Output
only for SPP and PPF modes, bi-directional for all other modes.
-STROBE
25
27
O
Data strobe output (internal pull-up / three stated active low). This output
indicates to the printer that valid data is available at the printer port (PD0-
PD7).
-AUTOFDX
26
28
O
Automatic line feed (internal pull-up / three stated active low). When this
signal is low the printer should automatically line feed after each line is
printed.
INIT
27
29
O
Initialize line printer (internal pull-up / three stated active low). When this
signal is low, it causes the printer to be initialized.
-SLCTIN
28
30
O
Line printer select (internal pull-up / three stated active low). When this
signal is low, it selects the printer.
-ERROR
1
57
I
Line printer error (internal pull-up / active low). This is an output from the
printer to indicate an error by holding it low during error condition.
SLCT
2
58
I
Line printer selected (internal pull-up / active high). This is an output from
the printer to indicate that the line printer has been selected.
BUSY
3
59
I
Line printer busy (internal pull-up / active high). An output from the printer
to indicate printer is not ready to accept data.
-ACK
4
60
I
Line printer acknowledge (internal pull-up / active low). This input is
pulsed low by the printer to indicate that data has been accepted success-
fully.
PE
5
61
I
Line printer paper empty (internal pull-up / active high). An output from the
printer to indicate out of paper.
PDIR
21
23
O
Printer port direction indicator. HIGH indicates device is in input mode,
LOW indicates output mode. (ST78C36CJ44 and ST78C36CQ64 only).
SYSTEM SIGNALS
CLOCK/
XTAL1
20
21
I
Crystal oscillator input (ST78C36ACJ44, ST78C36CQ64) or External
clock input (ST78C36CJ44), nominal 24 MHz.
XTAL2
21
22
O
Crystal oscillator output, nominal 24 MHz. ST78C36ACJ44 and
ST78C36CQ64 only.
RESET
24
26
I
System RESET (active HIGH).
PIN DESCRIPTION
NAME
44-PLCC
PIN
#
64-LQFP
PIN
#
TYPE
DESCRIPTION
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參數(shù)描述
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