Boot vector, Boot status – Philips P89LPC903 User Manual
Page 102
Philips Semiconductors
User’s Manual - Preliminary -
P89LPC901/902/903
FLASH PROGRAM MEMORY
2003 Dec 8
102
Boot Vector
Figure 14-9: Boot Vector (BOOTVEC)
Boot Status
Figure 14-10: Boot Status (BOOTSTAT)
BOOTVEC
Address: xxxxh
Factory default value: 00h
BIT
SYMBOL
FUNCTION
BOOTVEC.7-5
-
Reserved (should remain unprogrammed at zero).
BOOTVEC.4-0
-
Boot Vector. If the Boot Vector is selected as the reset address, the P89LPC901/902/903
will start execution at an address comprised of 00H in the lower eight bits and this
BOOTVEC as the upper bits after a reset. (See section "Power-On reset code execution"
on page 73).
7
6
5
4
3
2
1
0
-
-
-
BOOTV4 BOOTV3 BOOTV2 BOOTV1 BOOTV0
BOOTSTAT
Address: xxxxh
Factory default value: 00h
BIT
SYMBOL
FUNCTION
BOOTSTAT.7-1
-
Reserved (should remain unprogrammed at zero).
BOOTSTAT.0
BSB
Boot Status Bit. If programmed to ‘1’, the P89LPC901/902/903 will always start execution
at an address comprised of 00H in the lower eight bits and BOOTVEC as the upper bits
after a reset. (See section "Power-On reset code execution" on page 73).
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
BSB