Motorola CMD11E1 manual Memory Selection Jumpers JP3 JP10, U7 Device

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Memory Selection Jumpers JP3 – JP10

The factory setting for the jumpers should be correct for the memory devices that came with your board. If you add or modify the type or size of memory, you must change the following jumpers accordingly. All jumpers are two-pin jumpers and are installed vertically.

U7 - ROM or EEPROM

FFFF

E000

U7

JP8

JP9

JP10

U7 DEVICE

 

OFF

OFF

ON

8k EEPROM

< DEFAULT >

OFF

OFF

OFF

8k EPROM.

 

OFF

ON

OFF

32k EPROM.

 

ON

OFF

ON

32k EEPROM.

 

JP10 write protects U7 memory device when OFF.

U6 - RAM or EEPROM or ROM

DFFF

U6

8000

U5 - RAM

7FFF

U5

0100

JP4

JP5

JP7

JP6

U6 DEVICE

OFF

OFF

OFF

ON

8k RAM or EEPROM.

OFF

OFF

OFF

OFF

8k EPROM.

OFF

ON

ON

OFF

32k EPROM.

ON

OFF

ON

ON

32k RAM or EEPROM. < DEFAULT >

JP6 write protects U6 memory device when OFF.

For 32K device

JP3 = ON <DEFAULT> 32K bytes from 200 hex to 7FFF

 

hex (minus register area, see memory map) and

 

recommended position for Buffalo Monitor and Small C

 

operation. No segmentation occurs.

For 8K device

JP3 = OFF 8K bytes from 0000 hex to 1FFF hex and

 

mirrored at 2000 – 3FFF, 4000 – 5FFF, and 6000 - 7FFF.

 

This position will allow CPU internal Ram and I/O ports to

 

segment the 8K address space. Use this position to run

 

Basic11 with an 8K device.

You can determine the size of memory devices by reading the label on top of the chip. Memory devices that contain 64 in the part number are usually 8K. Those with 256 are usually 32K.

The type of memory can also be determined by reading the chip label. If you don’t recognize the memory type you can look up the part number in a catalog or device manual. If the chip is by Atmel™ or XICOR™ it is probably an EEPROM. If it has HY or SEC it is probably RAM.

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Contents CMD11E1 Contents Board Startup Installing the SoftwareGetting Started Creating source code TutorialSupport Software Software DevelopmentAS11 HELLO.ASM -l cre s HELLO.LST Assembling source codeHELLO.LST Running your applicationFdb Start Programming External EepromAddress Decoding Memory0FFF Memory MAPBuffalo Trace Jumper JP13 Mode Select Jumpers JP1 and JP2Jumpers U7 Device Memory Selection Jumpers JP3 JP10Keypad Ports and ConnectorsLcdport Serial Ports SS Keboard Parallel PortsMcuport AuxportBusport ReferenceTroubleshooting AxIDE Tips and SuggestionsLCD Character Codes LCD Command CodesTables Load T Buffalo Monitor Commands