Electronic Components Datasheet Search |
|
PXAG49KBBD Datasheet(PDF) 18 Page - NXP Semiconductors |
|
|
PXAG49KBBD Datasheet(HTML) 18 Page - NXP Semiconductors |
18 / 42 page Philips Semiconductors Preliminary data XA-G49 XA 16-bit microcontroller family 64K Flash/2K RAM, watchdog, 2 UARTs 2001 Jun 27 18 API CALL PARAMETER ERASE SPECIAL CELL Input Parameters: R0H = 95h R6 = special cell address 0000h: erase BPSW[7:0] 0001h: erase BPSW[15:8] 0002h: erase BPC[7:0] 0003h: erase BPC[15:8] 0004h: erase status byte Return Parameters: R4L = 00 if pass, non–zero if fail READ SPECIAL CELL Input Parameters: R0H = 96h R6 = special cell address 0000h: read BPSW[7:0] 0001h: read BPSW[15:8] 0002h: read BPC[7:0] 0003h: read BPC[15:8] 0004h: read status byte 0006h: read manufacturer ID 0007h: read device ID #1 0008h: read device ID #2 000Ah: read security bit #1 000Ch: read security bit #2 000Eh: read security bit #3 Return Parameters: R4L = value of byte read Security The security feature protects against software piracy and prevents the contents of the Flash from being read. The Security Lock bits are located in Flash. The XA-G49 has 3 programmable security lock bits that will provide different levels of protection for the on-chip code and data (see Table 3). Table 3. SECURITY LOCK BITS1 PROTECTION DESCRIPTION Level SB1 SB2 SB3 PROTECTION DESCRIPTION 1 0 0 0 No program security features enabled. 2 1 0 0 Same as level 1, plus block erase is disabled. Erase or programming of the status byte or boot vector is disabled. 3 1 1 0 Same as level 2, plus program verification is disabled 4 1 1 1 Same as level 3, plus external execution is disabled. NOTE: 1. Any other combination of the Lock bits is not defined. 2. Security bits are independent of each other. Full-chip erase may be performed regardless of the states of the security bits. 3. Setting LB doesn’t prevent programming of unprogrammed bits. |
Similar Part No. - PXAG49KBBD |
|
Similar Description - PXAG49KBBD |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |