Philips Semiconductors

Preliminary data

XA-G49

XA 16-bit microcontroller family

64K Flash/2K RAM, watchdog, 2 UARTs

2001 Jun 27

15

RECORD TYPE

COMMAND/DATA FUNCTION

84

Display Device Data or Blank Check – Record type 84 causes the contents of the entire FLASH array to be sent out

the serial port in a formatted display. This display consists of an address and the contents of 16 bytes starting with that

address. No display of the device contents will occur if security bit 2 has been programmed. The dumping of the device

data to the serial port is terminated by the reception of any character.

General Format of Function 84

:05xxxx84sssseeeeffcc

Where:

05

= number of bytes (hex) in record

xxxx

= required field, but value is a “don’t care”

84

= “Display Device Data or Blank Check” function code

ssss

= starting address

eeee

= ending address

ff

= subfunction

00 = display data

01 = blank check

cc

= checksum

Example:

:0500008440004FFF00E9

display 4000–4FFF

85

Miscellaneous Read Functions

General Format of Function 85

:02xxxx85ffsscc

Where:

02

=

number of bytes (hex) in record

xxxx

=

required field, but value is a “don’t care”

85

=

“Miscellaneous Read” function code

ffss

=

subfunction and selection code

0000 = read signature byte – manufacturer id (15H)

0001 = read signature byte – device id # 1

(EAH)

0002 = read signature byte – device id # 2

(XA–G49 = 54H))

0700 = read security bits (returned value bits 3:1 = sb3,sb2,sb1)

0701 = read status byte

0702 = read boot vector

cc

= checksum

Example:

:02000085000178

read signature byte – device id # 1