MS51
Nov. 28, 2019 Page 27 of 491 Rev 1.00
MS51 32K SERIES TECHNICAL REFERENCE MANUAL
CONFIG1
Factory default value: 1111 1111b
LDROM size select
This field selects the size of LDROM.
111 = No LDROM. APROM is 32 Kbytes.
110 = LDROM is 1 Kbytes. APROM is 31 Kbytes.
101 = LDROM is 2 Kbytes. APROM is 30 Kbytes.
100 = LDROM is 3 Kbytes. APROM is 29 Kbytes.
0xx = LDROM is 4 Kbytes. APROM is 28 Kbytes.
[1] The logic boundary addresses of APROM and LDROM are defined by CONFIG1[2:0].
LDROM
0000H
CHPCON[1] BS = 1
0000H
CHPCON[1] BS = 0
APROM
32K bytes
SPROM
FFFFH
FF80H
SPROM
0FFFH
[1]
0BFFH
[1]
07FFH
[1]
03FFH
[1]
7FFFH
7C00H
[1]
7800H
[1]
7400H
[1]
7000H
[1]
CONFIG
CONFIG
0000H
0000H
Figure 6.1-1 MS51 Program Memory Map