参数资料
| 型号： | ST78C36CJ44TR-F |
| 厂商： | Exar Corporation |
| 文件页数： | 4/27页 |
| 文件大小： | 0K |
| 描述： | IC UART FIFO 16B 44PLCC |
| 标准包装： | 500 |
| 特点： | * |
| FIFO's： | 16 字节 |
| 规程： | 打印机 |
| 电源电压： | 5V |
| 带并行端口： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-LCC（J 形引线） |
| 供应商设备封装： | 44-PLCC（16.59x16.59） |
| 包装： | 带卷 (TR) |
第1页第2页第3页当前第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页
ST78C36/36A
12
ECP/EPP PARALLEL PRINTER PORT WITH 16-BYTE FIFO
REV. 5.1.0
4.4.2
ECP REVERSE MODE (PDIR = 1)
PD[7:0] data and BUSY are latched into the FIFO and tag bit respectively at the trailing edge of -AUTOFD if
FIFO-F = 0. Timing is generated by controller logic that handshakes -ACK (peripheral) with -AUTOFD
(controller).
4.5
EPP MODE
This is ECR mode 100.
In this bi-directional mode, I/O writes will latch host output data at the trailing edge of -IOW, and peripheral
input data will be latched at the trailing edge of -SLCTIN or -AUTOFD. PDIR, and -STROBE are driven by the
state of -IOW (DCR bits 5 and 0 must be set low); -AUTOFD, INIT, and -SLCTIN are totem-pole.
EPP mode allows buffered access between the PC bus and the peripheral with timing provided by the
peripheral via BUSY handshake into IOCHRDY. I/O cycles with address 003 - 007 will immediately drive
IOCHRDY low. -STROBE will go low and PD[7:0] is allowed to change (write cycles) after BUSY has been low
for at least 60n second. (this delay may have elapsed prior to cycle initiation), immediately followed by a low
driven on -SLCTIN for address 003 or -AUTOFD (DATASTB*) for address 004 - 007 (read and write cycles).
When BUSY returns high for a minimum of 60n second, IOCHRDY and the active strobe will be driven high -
allowing the host to complete the I/O transaction.
To prevent a system stall, a 10 msecond TimeOut aborts the cycle if it expires before BUSY returns high. This
TimeOut also sets bit 0 of DCR, which is cleared by disabling EPP mode or writing a high to DCR bit 0.
4.6
TST MODE
This is ECR mode 110.
This mode allows data to be transferred (read or write in any direction) between the FIFO and host at address
400 or DMA without activating the control interface (no data is transferred to/from the peripheral). PDIR is
driven by DIR (can only be set in ECR mode 001); -AUTOFD, INIT, and -SLCTIN are totem-pole.
Performing I/O cycles in this mode allows software to test for the value of FIFOThreshold (FT) for both output
and input directions.
4.7
CFG MODE
This is ECR mode 111.
This mode enables I/O access to the configuration registers CONF-A and CONF-B and disables I/O access to
the FIFO.
4.7.1
IRQ
The module has four sources of interrupt which may be directed to -IRQ5, -IRQ7, -IRQ9 (see CONF-B) or
externally jumpered.
1.
When DCR bit 4 (AIE) is high and -ACK is low the interrupt is active.
2.
When ECP mode is active, if ECR bit 4 is low when ERROR transitions low or ECR bit 4 transitions low
when -Fault is low an interrupt pulse of at least 200n seconds will be generated.
3.
In FIFO modes (PPF, ECP, or TST) with ECR bit 3 (DMA) low, an interrupt pulse of at least 200n seconds
will be generated when ECR bit 2 (SI) is set low if there are at least 8 empty bytes in the FIFO and PDIR
= 0 or there are at least 8 filled bytes in the FIFO and PDIR = 1. This interrupt will automatically disable
itself by setting ECR bit 2 high.
4.
In FIFO modes (PPF, ECP, or TST) with (DMA request enabled), an interrupt pulse of at least 200n
seconds will be generated when TC is received if PD-ACK is low.
This interrupt will automatically disable itself and the DMA request by setting ECR bit 2 high.
相关PDF资料 |
PDF描述 |
|---|---|
| XR16L2550IMTR-F | IC UART FIFO 16B DUAL 48TQFP |
| XR16M780IL32-F | IC UART FIFO 64B 32QFN |
| XR68M752IL32TR-F | IC UART FIFO 64B DUAL 32QFN |
| ATMEGA168-15AT | MCU AVR 16K FLASH 15MHZ 32-TQFP |
| ST16C450CQ48TR-F | IC UART SINGLE 48TQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST78C36CQ-0A-EVB | 功能描述:界面开发工具 Supports 78C36 64 ld TQFP, ISA Interface RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| ST78C36CQ64 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| ST78C36CQ64-F | 功能描述:接口 - 专用 UART RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| ST78L05 | 制造商:SEMTECH_ELEC 制造商全称:SEMTECH ELECTRONICS LTD. 功能描述:3-Terminal positive voltage regulator |
| ST78L05U | 制造商:SEMTECH_ELEC 制造商全称:SEMTECH ELECTRONICS LTD. 功能描述:3-Terminal Positive Voltage Regulator |
发布紧急采购，3分钟左右您将得到回复。