XA-G39 Datasheet, PDF (16/42 Pages) NXP Semiconductors – XA 16-bit microcontroller family XA 16-bit microcontroller 32K FLASH/1K RAM, watchdog, 2 UARTs

Philips Semiconductors
XA 16-bit microcontroller family
32K Flash/1K RAM, watchdog, 2 UARTs
Preliminary data
XA-G39
In-Application Programming Method
Several In-Application Programming (IAP) 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 IAP calls are shown in Table 2.
Table 2. IAP calls
IAP CALL
PROGRAM DATA BYTE
ERASE BLOCK
ERASE BPC and
STATUS BYTE
PROGRAM SECURITY BIT
PROGRAM STATUS BYTE
PROGRAM BPC high byte
READ DEVICE DATA
READ MANUFACTURER ID
PARAMETER
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
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
R6L = 00h
Return Parameter
R4L = 00 if pass, non-zero if fail
Input Parameters:
R0H = 04h
Return Parameter
R4L = 00 if pass, non-zero if fail
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
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.
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.
Input Parameters:
R0H = 03h
R6 = address of byte to read
Return Parameter
R4L = value of byte read
Input Parameters:
R0H = 00h
R6H = 00h
R6L = 00h (manufacturer ID)
Return Parameter
R4L = value of byte read
2002 Mar 13
16