Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

FM3570M20X Datasheet(PDF) 3 Page - Fairchild Semiconductor

No. de pieza FM3570M20X
Descripción Electrónicos  CPU CONFIGURATION CONTROLLER Register/Multiplexer for Microprocessor VID
Download  8 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FM3570M20X Datasheet(HTML) 3 Page - Fairchild Semiconductor

  FM3570M20X Datasheet HTML 1Page - Fairchild Semiconductor FM3570M20X Datasheet HTML 2Page - Fairchild Semiconductor FM3570M20X Datasheet HTML 3Page - Fairchild Semiconductor FM3570M20X Datasheet HTML 4Page - Fairchild Semiconductor FM3570M20X Datasheet HTML 5Page - Fairchild Semiconductor FM3570M20X Datasheet HTML 6Page - Fairchild Semiconductor FM3570M20X Datasheet HTML 7Page - Fairchild Semiconductor FM3570M20X Datasheet HTML 8Page - Fairchild Semiconductor  
Zoom Inzoom in Zoom Outzoom out
 3 / 8 page
background image
3
www.fairchildsemi.com
www.fairchildsemi.com
FM3570 Rev. A
Functional Description
The FM3570 block diagram is shown in Figure 1. The device has
two primary functional modes of operationi and an additional
mode for programming the device.
Operational Modes
During standard operation, the device will either pass an address
to the Y-Port from the I-Port or from an internally programmed
value.
The I-port values are generated from the motherboard of the
system and may be hardwired or driven by another device. Pull-
up resistors are provided on the device to accommodate this
device being driven by open-drain output drivers. The voltage
level to which the I-port is pulled up to is determined by the voltage
on the EPV pin. The device expects standard CMOS input signals.
The the non-multiplexed output is always at CMOS levels. The
OVRD (override) input, when set to 0, will cause all the outputs to
be set to 0. The WP signal, if set to logic 1, will prevent data from
being written to the non-volatile register.
The MUXSEL input, when set to logic 0, will select the data from
the non-volatile register to drive on the Y0-4 outputs. if set to logic
1, the data from the inputs are selected instead. the non_mux_out
latch is transparent when the MUXSEL signal is at logic 0, and will
latch when the MUXSEL is in a logic 1 state.
Output Port: Y0-Y4
The output port is an open-drain output to allow for easy connec-
tion to devices running at different voltage levels. The port is
always active and either passes the value on the I-Port or the value
in the Serial output port (SOPR). Changing the Mux Path is
accomplished by writing to b7 of the Serial Input Port Register.
SOPR-b7 defaults to a value of zero at power up and the default
path is from the I-port though to the output port. The multiplexer
only updates when an IIC stop condition is observed.
Register Description
The FM3570 has 3 registers in total. These registers are made up
of a combination of read-only, write-only and read/write bits. The
two registers are listed below.
Serial Output Port Register A(SOPRA) Address: 00H - A read/
write register that contains the new value to be written to output
Port-Y and the multiplexer select bit.
Serial Output Port Register B(SOPRB) Address: 01H - A read/
write register that contains the new value to be written to output
Port-Y and the multiplexer select bit.
Parallel Input Port Register (PIPR) Address: 02H - A read-only
register that is loaded with the 5-bit value of the I-Port.
Serial Output Port Register (SOPR)
(Address 000b and 001b)
MXSB MXSA
Data Field
0
0
I5
NMO
I3
I2
I1
I0
b7
b6
b5
b4
b3
b2
b1
b0
b7-b6 - Multiplexer Select Bits (MXSB, MXSA)
00 - Multiplexer passes the SOPR(A).
01 - Multiplexer passer the SOPR(B).
10 - Multiplexer defaults to passing the I-Port Value.
b5, b3-b0 - Data Field. New value to be output through the
multiplexer.
NMO - Non-multiplexed output from internal non-volatile bit.
Parallel Input Port Register (PIPR)
(Address 002b)
Address Field
Data Field
0
0
0
I4
I3I2I1
I0
b7
b6
b5
b4
b3
b2
B1
b0
b7-b5 - Address field. Value is always 000
b4-b0 - Data Field. Value is equal to the value on the I-Port.
The external Port Register captures the value on the I-Port. Data
is latched into this register on the first clock after a start condition
is seen. This insures that a valid value will always be in this register
if it is read. This register is a-read only register with respect to the
IIC port.


Número de pieza similar - FM3570M20X

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Rectron Semiconductor
FM350 RECTRON-FM350 Datasheet
25Kb / 2P
   SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER(VOLTAGE RANGE 20 to 100 Volts CURRENT 3.0 Amperes)
logo
Formosa MS
FM350 FORMOSA-FM350 Datasheet
70Kb / 2P
   Silicon epitaxial planer type
logo
SHENZHEN YONGERJIA INDU...
FM350 WINNERJOIN-FM350 Datasheet
87Kb / 2P
   Chip Schottky Barrier Diodes
logo
Formosa MS
FM350-A FORMOSA-FM350-A Datasheet
69Kb / 2P
   Silicon epitaxial planer type
FM350-AL FORMOSA-FM350-AL Datasheet
71Kb / 2P
   Chip Schottky Barrier Diodes - Silicon epitaxial planer type
More results

Descripción similar - FM3570M20X

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Fairchild Semiconductor
FM3565 FAIRCHILD-FM3565 Datasheet
84Kb / 7P
   CPU CONFIGURATION CONTROLLER Register/Multiplexer for Microprocessor VID
logo
STMicroelectronics
M74HC298 STMICROELECTRONICS-M74HC298 Datasheet
253Kb / 11P
   QUAD 2 CHANNEL MULTIPLEXER/REGISTER
M54HC298 STMICROELECTRONICS-M54HC298 Datasheet
248Kb / 11P
   QUAD 2 CHANNEL MULTIPLEXER/REGISTER
M54HC354 STMICROELECTRONICS-M54HC354 Datasheet
264Kb / 12P
   8 CHANNEL MULTIPLEXER/REGISTER 3 STATE
logo
ON Semiconductor
ADP3207 ONSEMI-ADP3207 Datasheet
398Kb / 29P
   CPU Synchronous Buck Controller
February 2008 ??Rev. 1
logo
NXP Semiconductors
74HC356 PHILIPS-74HC356 Datasheet
79Kb / 13P
   8-input multiplexer/register; 3-state
December 1990
logo
Advanced Micro Devices
AM2922 AMD-AM2922 Datasheet
322Kb / 7P
   Eight Input multiplexer with Control Register
logo
ON Semiconductor
ADP3207A ONSEMI-ADP3207A Datasheet
396Kb / 28P
   CPU Synchronous Buck Controller
February 2008 ??Rev. 1
logo
Cherry Semiconductor Co...
CS51312 CHERRY-CS51312 Datasheet
276Kb / 18P
   Synchronous CPU Buck Controller for 12V Only Applications
logo
ON Semiconductor
NCP5392 ONSEMI-NCP5392 Datasheet
313Kb / 32P
   2/3/4-Phase Controller for CPU Applications
August, 2008 ??Rev. 3
More results


Html Pages

1 2 3 4 5 6 7 8


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com