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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(jī)端口（帶16字節(jié)先進(jìn)先出）) |
| 中文描述： | 支持ECP / EPP并行打印機(jī)端口（支持ECP / EPP并行打印機(jī)端口（帶16字節(jié)先進(jìn)先出），16字節(jié)FIFO） |
| 文件頁數(shù)： | 9/27頁 |
| 文件大小： | 204K |
| 代理商： | ST78C36 |
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ST78C36/36A
6-29
Rev. 4.20
DCR Bit-5:
Peripheral port direction, OUT = 0 and IN = 1.
This bit is forced to logic zero by ECR modes 000 or
010. It can be written only in ECR mode 001, and will
maintain that state if the ECR mode is changed to 011,
100, or 110. This bit must be set low for EPP mode,
which allows the host to control direction with -IOR and
-IOW. The final port direction also drives PDIR.
DCR Bits 6-7:
Reserved, logic zero.
EPP ADDRESS PORT ( EPP-APort )
When EPP mode is enabled, a host read or write with
this port will result in a data transfer directly to/from the
peripheral with -SLCTIN active. Direction is set by
host read/write and will drive -STROBE low during a
write if DCR bit 5 (DIR) is not set high.
EPP DATA PORT (EPP-DPort )
When EPP mode is enabled, a host read or write with
this port will result in a data transfer directly to/from the
peripheral with -AUTOFD active. Direction is set by
host read/write and will drive -STROBE low during a
write if DCR bit 5 (DIR) is not set high.
PARALLEL PORT DATA ( C-FIFO )
This port is available for programmed I/O and DMA
access. Data written to this port is stored in the FIFO
if FIFO-F = 0 and will be lost if FIFO-F = 1.
Data written to this port will be automatically trans-
ferred to the peripheral with -STROBE handshaking
with BUSY. This port is only defined for write, host
reads will interfere with FIFO read sequencing.
ECP DATA FIFO ( ECP-DFIFO )
This port is available for programmed I/O and DMA
access. Data written to this port is stored in the FIFO
if FIFO-F = 0 and will be lost if FIFO-F = 1. A 9th FIFO
bit (tag) is set high on write.
Data read from this port will undergo de-compression
if the FIFO tag bit and data bit-7 are both low. The byte
containing the RLE count is loaded into the RLE
counter and the succeeding byte in the FIFO will be
returned to the host RLE count + 1 times before the
FIFO read address is incremented. If a FIFO under-
run is incurred during host read, the last data byte is
returned and FIFO-E remains coherent.
TEST FIFO ( T-FIFO )
This port is available for programmed I/O and DMA
access. Data written to this port is stored in the FIFO
if FIFO-F = 0 and will be lost if FIFO-F = 1. During a
read cycle from this port a FIFO under-run will return
last data read and FIFO-E remains coherent.
CONFIGURATION REGISTER A ( Cnfg-A )
This read-only register is available in ECR mode 111
only.
Cnfg-A Bit 0-1:
Forced to logic zero, this field is don’t care for PWord
= 1 byte.
Cnfg-A Bit-2:
When transmitting, there is 1 byte waiting to be
transmitted that does not affect FIFO-F.
Cnfg-A Bit-3:
Reserved, logic zero.
Cnfg-A Bit 4-6:
Indicates PWord = 1 byte (8-bit implementation).
Cnfg-A Bit-7:
Indicates ECP interrupts are pulsed.
CONFIGURATION REGISTER B ( Cnfg-B )
This register is available in ECR mode 111 only, and
returns bits 0-5 as logic zero for the ST78C36CJ44.
The ST78C36CQ64 will allow programmed selection
of the Interrupt and DMA channels after a system
RESET state of 001011 (bits 0-5).
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(jī)端口（帶16字節(jié)先進(jìn)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 |
|---|---|
| ST78C36_05 | 制造商:EXAR 制造商全稱:EXAR 功能描述:ECP/EPP PARALLEL PRINTER PORT WITH 16-BYTE FIFO |
| ST78C36A | 制造商:EXAR 制造商全稱:EXAR 功能描述:ECP/EPP PARALLEL PRINTER PORT WITH 16-BYTE FIFO |
| ST78C36ACJ-0A-EVB | 功能描述:界面開發(fā)工具 Supports 78C36A 44ld PLCC, ISA Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| ST78C36ACJ44 | 制造商:EXAR 制造商全稱:EXAR 功能描述:ECP/EPP PARALLEL PRINTER PORT WITH 16-BYTE FIFO |
| ST78C36ACJ44-F | 功能描述:接口 - 專用 UART RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
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