參數(shù)資料
型號: STPD0166BTI3
廠商: 意法半導(dǎo)體
英文描述: PC Compatible Embedded Microprocessor
中文描述: PC兼容嵌入式微處理器
文件頁數(shù): 19/48頁
文件大?。?/td> 762K
代理商: STPD0166BTI3
PIN DESCRIPTION
Issue 1.7 - February 8, 2000
19/48
ISAOE#
Bidirectional OE Control.This signal con-
trols the OE signal of the external transceiver that
connects the IDE DD bus and ISA SA bus.
GPIOCS#
I/O General Purpose Chip Select 1.
This output signal is used by the external latch on
ISA bus to latch the data on the SD[7:0] bus. The
latch can be used by the PMU unit to control the
external peripheral devices to power down or any
other desired function.
This pin is also serves as a strap input during re-
set.
2.2.9.
IDE CONTROL
PIRQ
Primary Interrupt Request.Interrupt request
from primary IDE channel.
SIRQ
Secondary Interrupt Request. Interrupt re-
quest from secondary IDE channel.
PDRQ
Primary DMA Request. DMA request from
primary IDE channel.
SDRQ
Secondary DMA Request. DMA request
from secondary IDE channel.
PDACK#
Primary DMA Acknowledge. DMA ac-
knowledge to primary IDE channel.
SDACK#
Secondary DMA Acknowledge. DMA
acknowledge to secondary IDE channel.
PIOR#
Primary I/O Read. Primary channel read.
Active low output.
PIOW#
Primary I/O Write Primary channel write.
Active low output.
SIOR#
Secondary I/O Read. Secondary channel
read. Active low output.
SIOW#
Secondary I/O Write. Secondary channel
write. Active low output.
2.2.10. X-BUS INTERFACE PINS / IDE DATA
RMRTCCS# /DD[15]
ROM/Real Time Clock Chip
Select. This pin is a multi-function pin. When
ISAOE# is active, this signal is used as RM-
RTCCS#. This signal is asserted if a ROM access
is decoded during a memory cycle. It should be
combined with MEMR# or MEMW# signals to
properly access the ROM. During an I/O cycle,
this signal is asserted if access to the Real Time
Clock (RTC) is decoded. It should be combined
with IOR#+ or IOW# signals to properly access the
real time clock.
When ISAOE# is inactive, this signal is used as
IDE DD[15] signal.
This signal must be ORed externally with ISAOE#
and is then connected to ROM and RTC. An
LS244 or equivalentfunction canbe used if OE# is
connected to ISAOE# and the output is provided
with a weak pull-up resistor.
KBCS# / DD[14]
Keyboard Chip Select. This pin
is a multi-function pin. When ISAOE# is active,
this signal isused as KBCS#. Thissignal is assert-
ed if a keyboard access is decoded during a I/O
cycle.
When ISAOE# is inactive, this signal is used as
IDE DD[14] signal.
This signal must be ORed externally with ISAOE#
and is then connected to the keyboard. An LS244
or equivalent function can be used if OE# is con-
nected to ISAOE# and the output is provided with
a weak pull-up resistor.
RTCRW# / DD[13]
Real Time Clock RW. This pin
is a multi-function pin. When ISAOE# is active,
this signal is used as RTCRW#. This signal is as-
serted for any I/O write to port 71H.
When ISAOE# is inactive, this signal is used as
IDE DD[13] signal.
This signal must be ORed externally with ISAOE#
and then connected to the RTC. An LS244 or
equivalent function can be used if OE# is connect-
ed to ISAOE# and the output is provided with a
weak pull-up resistor.
RTCDS# / DD[12]
Real Time Clock DS This pin is
a multi-function pin. When ISAOE# is active, this
signal is used as RTCDS. This signal is asserted
for any I/O read to port 71H.
When ISAOE# is inactive, this signal is used as
IDE DD[12] signal.
This signal must be ORed externally with ISAOE#
and is then connected to RTC. An LS244 or equiv-
alent function can be used if OE# is connected to
ISAOE# and the output is provided with a weak
pull-up resistor.
2.2.11. IPC
IRQ_MUX[3:0]
Multiplexed Interrupt Request.
These are the ISA bus interrupt signals. They are
to be encoded before connection to the STPC Cli-
ent using ISACLK and ISACLKX2 as the input se-
lection strobes.
Note that IRQ8B, which by convention is connect-
ed to the RTC, is inverted before being sentto the
interrupt controller, so that it may be connected di-
rectly to the IRQ pin of the RTC.
PCI_INT[3:0]
PCI Interrupt Request. These are
the PCI bus interrupt signals. They are to be en-
coded before connection to the STPC Client using
相關(guān)PDF資料
PDF描述
STPCD0175BTC3 PC Compatible Embedded Microprocessor
STPD0175BTC3 PC Compatible Embedded Microprocessor
STPCD0175BTI3 PC Compatible Embedded Microprocessor
STPD0175BTI3 PC Compatible Embedded Microprocessor
STPD0166BTA3 RP15 (F) Series - Powerline Regulated DC-DC Converters; Input Voltage (Vdc): 12V; Output Voltage (Vdc): 3.3V; 2:1 Wide Input Voltage Range; 15 Watts Output Power; 1.6kVDC Isolation; UL Certified; Fixed Operating Frequency; Six-Sided Continuous Shield; Standard 50.8 x25.4x10.2mm Package; Efficiency to 88%
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
STPD0175BTA3 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PC Compatible Embedded Microprocessor
STPD0175BTC3 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PC Compatible Embedded Microprocessor
STPD0175BTI3 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:PC Compatible Embedded Microprocessor
STP-DRH05 功能描述:烙鐵 Cartridge Hoof 0.5mm (0.02in) RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included
STP-DRH15 功能描述:烙鐵 Cartridge Hoof 1.5mm (0.059in) RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included