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PXAG49KBBD Datasheet(PDF) 16 Page - NXP Semiconductors |
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PXAG49KBBD Datasheet(HTML) 16 Page - NXP Semiconductors |
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16 / 42 page  Philips Semiconductors Preliminary data XA-G49 XA 16-bit microcontroller family 64K Flash/2K RAM, watchdog, 2 UARTs 2001 Jun 27 16 In-Application Programming Method Several Application Program Interface (API) calls are available for use by an application program to permit selective erasing and programming of FLASH sectors. All calls are made through a common interface, PGM_MTP. The programming functions are selected by setting up the microcontroller’s registers before making a call to PGM_MTP at FFF0H. Results are returned in the registers. The API calls are shown in Table 2. Table 2. API calls API CALL PARAMETER PROGRAM DATA BYTE Input Parameters: R0H = 02h or 92h R6 = address of byte to program R4L = byte to program Return Parameter R4L = 00 if pass, non-zero if fail ERASE BLOCK Input Parameters: R0H = 01h or 93h R6H = block number in bits 7:5, bits 4:0 = ’0’ block 0 : R6H = 00h block 1 : R6H = 20h block 2 : R6H = 40h block 3 : R6H = 80h block 4 : R6H = C0h R6L = 00h Return Parameter R4L = 00 if pass, non-zero if fail ERASE BPC and STATUS BYTE Input Parameters: R0H = 04h Return Parameter R4L = 00 if pass, non-zero if fail PROGRAM SECURITY BIT Input Parameters: R0H = 05h R6H = 00h R6L = 00h – security bit # 1 (inhibit writing to FLASH) 01h – security bit # 2 (inhibit FLASH verify) 02h – security bit # 3 (disable external memory) Return Parameter none PROGRAM STATUS BYTE Input Parameters: R0H = 06h R6H = 00h R6L = 00h – program status byte R4L = status byte Return Parameter R4L = 00 if pass, non-zero if fail NOTE: Only two bits of this Special Cell may be programmed at one time. PROGRAM BPC high byte Input Parameters: R0H = 06h R6H = 00h R6L = 01h – program BPC R4L = BPC[15:8] (BPC[7:0] unchanged) Return Parameter R4L = 00 if pass, non-zero if fail NOTE: Only two bits of this Special Cell may be programmed at one time. READ DEVICE DATA Input Parameters: R0H = 03h R6 = address of byte to read Return Parameter R4L = value of byte read READ MANUFACTURER ID Input Parameters: R0H = 00h R6H = 00h R6L = 00h (manufacturer ID) Return Parameter R4L = value of byte read |
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