參數(shù)資料
型號： ST78C36
廠商： Exar Corporation
英文描述： ECP/EPP Parallel Printer Port with 16 Byte FIFO(ECP/EPP并行打印機端口（帶16字節(jié)先進先出）)
中文描述： 支持ECP / EPP并行打印機端口（支持ECP / EPP并行打印機端口（帶16字節(jié)先進先出），16字節(jié)FIFO）
文件頁數(shù)： 7/27頁
文件大小： 204K
代理商： ST78C36
ST78C36/36A
6-27
Rev. 4.20
OVERVIEW
This device is designed around the Hewlett Packard/
Microsoft specification for Extended Capabilities Port
Protocol with “ECR mode 100” defined as Enhanced
Parallel Port (EPP) mode. The internal timing engines
were designed around a 24 MHz reference, which can
be supplied from an external source or by the built-in
oscillator circuit (ST78C36CQ64 only) with an appro-
priate crystal.
At system RESET, the device defaults to standard
IBM PC compatible Centronics printer mode (output
only). The bi-directional PS/2, EPP, and ECP modes
can only be activated by programming the ECR mode
field (this requires address bit A10 = 1, which is outside
the normal a three state state/ISA I/O space).
Optional capabilities of the ECP specification are set
as follows:
ECP defined interrupts are pulsed, low true
(Centronics -ACK is non-pulsed, low true).
PWord size is forced to 1 byte.
There is 1 byte in the transmitter that does not
affect the FIFO full bit (ECP modes).
RLE compression is not supported in hardware.
IRQ channel is selectable as 5, 7, or 9
(ST78C36CQ64 only).
DMA channel is selectable as 1, 2, or 3
(ST78C36CQ64 only).
FIFO THRESHOLD is set at 8 (used only for non-
DMA access to the FIFO).
PORT
ADDRESS
R/W
MODE
FUNCTION
DATA
ECP-AFIFO
DSR
DCR
EPP-APort
EPP-DPort
C-FIFO
ECP-DFIFO
T-FIFO
Cnfg-A
Cnfg-B
ECR
000
000
001
002
003
R/W
W
R
R/W
R/W
R/W
W
R/W
R/W
R
R-R/W
R/W
000-001
011
All
All
100
100
010
011
110
111
111
All
Data Register
ECP FIFO (Address)
Status Register
Control Register
EPP Port (Address)
EPP Port (Data)
Parallel Port Data FIFO
ECP FIFO (Data)
Test FIFO
Configuration Register A
Configuration Register B
Extended Control Register
004-007
400
400
400
400
401
402
相關(guān)PDF資料
PDF描述
ST78C36A ECP/EPP Parallel Printer Port with 16 Byte FIFO(ECP/EPP并行打印機端口（帶16字節(jié)先進先出）)
ST7LITE05Y0B6 FUSE, FORK LIFT TRUCK, 50A; Current, fuse rating:50A; Voltage rating, DC:80V; Approval category:DIN 43560/1; Depth, external:20mm; Height:1mm; Length / Height, external:0.5mm; Width, external:82mm RoHS Compliant: Yes
ST7LITE05Y0M6 FUSE, FORK LIFT TRUCK, 80A; Current, fuse rating:80A; Voltage rating, DC:80V; Approval category:DIN 43560/1; Depth, external:20mm; Height:1mm; Length / Height, external:0.5mm; Width, external:82mm RoHS Compliant: Yes
ST7LITE09Y0B6 FUSE, FORK LIFT TRUCK, 200A; Current, fuse rating:200A; Voltage rating, DC:80V; Approval category:DIN 43560/1; Depth, external:20mm; Height:1mm; Length / Height, external:0.5mm; Width, external:82mm RoHS Compliant: Yes
ST7LITE09Y0M6 FUSE, FORK LIFT TRUCK, 250A; Current, fuse rating:250A; Voltage rating, DC:80V; Approval category:DIN 43560/1; Depth, external:20mm; Height:1mm; Length / Height, external:0.5mm; Width, external:82mm RoHS Compliant: Yes
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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