lpc47s457-ns Standard Microsystems Corp., lpc47s457-ns Datasheet - Page 195
lpc47s457-ns
Manufacturer Part Number
lpc47s457-ns
Description
Advanced I/o With X-bus Interface
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LPC47S457-NS.pdf
(259 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC47S457-NS
Manufacturer:
Microchip Technology
Quantity:
10 000
- Current page: 195 of 259
- Download datasheet (2Mb)
9.2 Configuration Sequence
To program the configuration registers, the following sequence must be followed:
1.
2.
3.
Enter Configuration Mode
To place the chip into the Configuration State the Config Key is sent to the chip's CONFIG PORT. The config key
consists of 0x55 written to the CONFIG PORT. Once the configuration key is received correctly the chip enters into
the Configuration State (The auto Config ports are enabled).
Configuration Mode
The system sets the logical device information and activates desired logical devices through the INDEX and DATA
ports. In configuration mode, the INDEX PORT is located at the CONFIG PORT address and the DATA PORT is at
INDEX PORT address + 1.
The desired configuration registers are accessed in two steps:
a)
b)
Note: If accessing the Global Configuration Registers, step (a) is not required.
Exit Configuration Mode
To exit the Configuration State the system writes 0xAA to the CONFIG PORT. The chip returns to the RUN State.
Note: Only two states are defined (Run and Configuration). In the Run State the chip will always be ready to enter the
Configuration State.
9.3 Programming Example
The following is an example of a configuration program in Intel 8086 assembly language.
;----------------------------.
; ENTER CONFIGURATION MODE
;----------------------------'
MOV
MOV
OUT
;----------------------------.
; CONFIGURE REGISTER CRE0,
; LOGICAL DEVICE 8
;----------------------------'
MOV
MOV
OUT
MOV
MOV
Notes: PCI RESET: PCI_RESET# pin asserted
SMSC LPC47S45x
Enter Configuration Mode
Configure the Configuration Registers
Exit Configuration Mode.
Write the index of the Logical Device Number Configuration Register (i.e., 0x07) to the INDEX PORT and then
write the number of the desired logical device to the DATA PORT.
Write the address of the desired configuration register within the logical device to the INDEX PORT and then
write or read the configuration register through the DATA PORT.
SOFT RESET: Bit 0 of Configuration Control register set to one
All host accesses are blocked for 500µs after VCC POR (see Power-up Timing Diagram)
DX,02EH
AX,055H
DX,AL
DX,02EH
AL,07H
DX,AL ;Point to LD# Config Reg
DX,02FH
AL, 08H
|
|
|
DATASHEET
Page 195 of 259
OUT
;
MOV
MOV
OUT
MOV
MOV
OUT
;-----------------------------.
; EXIT CONFIGURATION MODE
;-----------------------------'
MOV
MOV
OUT
DX,AL;Point to Logical Device 8
DX,02EH
AL,E0H
DX,AL ; Point to CRE0
DX,02fH
AL,02H
DX,AL ; Update CRE0
DX,02EH
AX,0AAH
DX,AL
|
Rev. 08-10-09
Related parts for lpc47s457-ns
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Interface, Integrated USB2.0 Compatible 3-Port Hub
Manufacturer:
Standard Microsystems Corp.
Datasheet:
Part Number:
Description:
Lan91c100fd Rev. B Feast Fast Ethernet Controller With Full Duplex Capability
Manufacturer:
Standard Microsystems Corp.
Datasheet:
Part Number:
Description:
Feast ? Ast Ethernet Controller
Manufacturer:
Standard Microsystems Corp.
Datasheet:
Part Number:
Description:
Com20022i 10 Mbps Arcnet Ansi 878.1 Controller With 2k X 8 On-chip Ram
Manufacturer:
Standard Microsystems Corp.
Part Number:
Description:
Lpc47n207 Lpc Super I/o Irda Hot Docking Chip With Uart Data Brief
Manufacturer:
Standard Microsystems Corp.
Datasheet:
Part Number:
Description:
Fdc37m707 Enhanced Super I/o Controller With Wake-up Features
Manufacturer:
Standard Microsystems Corp.
Datasheet:
Part Number:
Description:
Twenty Pin Uart Tpuart Corporation
Manufacturer:
Standard Microsystems Corp.
Datasheet:
Part Number:
Description:
Enhanced Small Device Interface Controller
Manufacturer:
Standard Microsystems Corp.
Part Number:
Description:
Rpm-based Pwm Fan Controller
Manufacturer:
Standard Microsystems Corp.
Datasheet:
Part Number:
Description:
Rpm-based Pwm Fan Controller
Manufacturer:
Standard Microsystems Corp.
Datasheet:
Part Number:
Description:
Emc1001 1.5?c Smbus Temperature Sensor In Miniature Sot-23
Manufacturer:
Standard Microsystems Corp.
Datasheet:
Part Number:
Description:
1 Degree C Triple Temperature Sensor With Beta Compensation And Hotter Of Two Zones
Manufacturer:
Standard Microsystems Corp.
Datasheet:
Part Number:
Description:
1 Degree C Multiple Temperature Sensor With Beta Compensation And Hottest Of Thermal Zones
Manufacturer:
Standard Microsystems Corp.
Datasheet:
Part Number:
Description:
1 Degree C Triple Temperature Sensor With Resistance Error Correction & Hotter Of Two Zones
Manufacturer:
Standard Microsystems Corp.
Datasheet:
Part Number:
Description:
1 Degree C Triple Temperature Sensor With Hotter Of Two Zones
Manufacturer:
Standard Microsystems Corp.
Datasheet: