Freescale Semiconductor Starter Kit for MC9S12G TRK-USB-S12G128 TRK-USB-S12G128 数据表

Freescale Semiconductor

1019

Upon clearing CCIF to launch the Read Once command, a Read Once phrase is fetched and stored in the
FCCOB indexed register. The CCIF flag will set after the Read Once operation has completed. Valid
phrase index values for the Read Once command range from 0x0000 to 0x0007. During execution of the
Read Once command, any attempt to read addresses within P-Flash block will return invalid data.

8

The Program P-Flash operation will program a previously erased phrase in the P-Flash memory using an
embedded algorithm.

A P-Flash phrase must be in the erased state before being programmed.
Cumulative programming of bits within a Flash phrase is not allowed.

001

Read Once phrase index (0x0000 - 0x0007)

010

Read Once word 0 value

011

Read Once word 1 value

100

Read Once word 2 value

101

Read Once word 3 value

FSTAT

ACCERR

Set if CCOBIX[2:0] != 001 at command launch

Set if command not available in current mode (see

)

Set if an invalid phrase index is supplied

FPVIOL

None

MGSTAT1

Set if any errors have been encountered during the read

MGSTAT0

Set if any non-correctable errors have been encountered during the read

000

0x06

Global address [17:16] to

identify P-Flash block

001

Global address [15:0] of phrase location to be programmed

1

010

Word 0 program value

011

Word 1 program value

100

Word 2 program value

101

Word 3 program value