Nortel Networks MSC8101 ADS Manual Do Utilizador

MOTOROLA

59

Functional Description

BCSR3 is a status register which is accessed as word at offset C from the BCSR base address.
Its a Read-Only register. BCSR3’s various fields are described in 

20 - 23

BREVN(0:3)

Board Revision Number (0:3). This field represents the revision code,
hard-assigned to the ADS. See 

, for revisions’ encoding.

0

R

24

SWOPT2

Software Option 2. This is the LSB of the field. Shows the state of a
dedicated dip-switch providing an option to manually change a program
flow. For the setting of dip-switch see.

0

R

25 - 27

FLASH_PD(7:5)

Flash Presence Detect(7:5). These lines are connected to the Flash SIMM
presence detect lines, which encode the Delay of Flash SIMM mounted on
the Flash SIMM socket. For the encoding of FLASH_PD(4:1) see 

-

R

28 - 31

FLASH_PD(4:1)

Flash Presence Detect(4:1). These lines are connected to the Flash SIMM
presence detect lines which encode the type of Flash SIMM mounted on the
Flash SIMM socket. For the encoding of FLASH_PD(4:1) see 

.

-

R

a. There is additional bit to this field. See bit 24 in the same table.

000

Not Supported

001

150

010

100/120

011

80/90

100

70 nsec

101 - 111

Not Supported

0000

SM73288XG4JHBG0 - 32 MByte (4 banks of 4 X 2M X 8) by Smart Modular 
Technology.

0001

SM73248XG2JHBG0 - 16 MByte (2 banks of 4 X 2M X 8) by Smart Modular
Technology.

0010 

SM73228XG1JHBG0 - 8 MByte (1 bank of 4 X 2M X 8) by Smart Modular
Technology.

0011 - 1111

Not Supported

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Freescale Semiconductor, Inc.

For More Information On This Product,

   Go to: www.freescale.com

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