Flash Download Commands

Read EEROM Parameter

Returns the setting of the requested parameter. The command assumes that the printer flash program memory (sectors 0, 1) have been correctly programmed. If these sectors have been erased, the printer returns NAK. The printer transmits ACK, followed by the value of the request parameter.

Hexadecimal

Decimal

ASCII

 

1D 0D n

29 13 n

GS CR n

n

d

 

Function

 

 

 

 

 

 

0

0

 

Data Scope Mode OFF

 

 

 

 

 

 

01 Data Scope Mode ON

10 E13B MICR Type

11 CMC7 MICR Type

20 Cover Open Switch Enabled

2

1

Cover Open Switch Disabled

Erase the Flash ROM

Causes the entire Flash ROM to be erased.

The printer returns ACK if the command is successful; otherwise, NAK is returned.

Hexadecimal

Decimal

ASCII

1D 0E

29 14

GS SO

Return CRC of Selected Flash Sector

Causes the printer to return the CRC of the flash sector (only from sector 0 or

1)selected by the Select Sector to Download command (1D 02): ACK (CRC low, CRC high).

Hexadecimal

Decimal

ASCII

1D 0F

29 15

GS SI

3255 4073–002

10–9

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Unisys EFP9800 Flash Download Commands Read Eerom Parameter, Erase the Flash ROM, Return CRC of Selected Flash Sector