TMP89FS60 datasheet(364/410 Pages) TOSHIBA

364 / 410 page

Page 350

22. Serial PROM Mode

22.8 Operation Commands

TMP89FS60

RA002

22.8.7.1 Flash memory status code

The flash memory status code is 7-byte data. It shows the status of the flash memory security program

and that of the address from 0xFFE0 to 0xFFFF.

Restrictions are placed on the execution of some operation commands, depending on the contents of the

status code 1. Detailed information on this is shown in the table below. If the security program is enabled,

three commands cannot be executed: the flash memory write command, RAM loader mode command,

and Sector Erase command. To execute these commands, Chip Erase must be performed on flash memory

before they are executed.

Table 22-15 Flash Memory Status Code

Data

Description

In the case of TMP89FS60

1st

Start mark

0x3A

2nd

Number of transfer data (4 bytes from 3rd through

6th bytes)

0x04

3rd

Status code

0x00 through 0x1F

(see information below)

4th

Reserved

0x00

5th

Reserved

0x00

6th

Reserved

0x00

7th

Checksum of transfer data

(complement of 2 of the sum total of 3rd through

6th bytes)

If 3rd data is 0x00: 0x00

If 3rd data is 0x01: 0xFF

If 3rd data is 0x02: 0xFE

If 3rd data is 0x03: 0xFD

Status code 1

765

43210

EPFC

DAFC

RPENA

BLANK

Initial value (**** ****)

EPFC

Password string judgment when the

flash memory erase command is

executed

(status of 0xFFFA)

To skip the judgment of a password string (to judge PNSA and

PCSA only)

To judge a password string, PNSA, and PCSA

DAFC

Security program check of the on-

chip debugging function (OCD)

(status of 0xFFFB)

To skip the security program check at the start of OCD

To perform the security program check at the start of OCD

RPENA

Status of the flash memory security

program

Status in which the security program is disabled

Status in which the security program is enabled

BLANK

Status of 0xFFE0 through 0xFFFF

If data in the area 0xFFE0 through 0xFFFF are all 0xFF

If data in the area 0xFFE0 through 0xFFFF are other than 0xFF

TMP89FS60 Datasheet(PDF) 364 Page - Toshiba Semiconductor

TMP89FS60 Datasheet(HTML) 364 Page - Toshiba Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL