DS80C411 Maxim, DS80C411 Datasheet - Page 75
DS80C411
Manufacturer Part Number
DS80C411
Description
The DS80C410/DS80C411 network microcontrollers offer the highest integration available in an 8051 device
Manufacturer
Maxim
Datasheet
1.DS80C410.pdf
(102 pages)
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DS80C410 ROM Initialization Code
The DS80C410 firmware automatically executes Initialization Code (ROM_Init) to generate the memory map as
shown in
Enables 24-bit contiguous address mode
Logically relocates ROM to addresses FF0000h–FF7FFFh
Enables CE0–3, 2MB/chip enable
Enables PCE0–3
Enables CE4–7, 1M/peripheral chip enable
Merged program/data CE0–3, relocate internal XRAM
Enables extended 1kB stack option
Configure to maximum MOVX stretch value
Configure UARTs for Mode 1 serial operation
Figure 14. Memory Map Following Execution of ROM_Init on DS80C410/DS80C411
Figure 14
ROM
program
INTERNAL MEMORY
64kB Internal SRAM
and configure the hardware as follows:
CAN/BCU XRAM
data
00FFFFh
FFDB00h
FF0000h
75 of 102
FFFFFFh -
E00000h -
C00000h -
A00000h -
000000h -
800000h -
200000h -
600000h -
400000h -
DATA INACCESSIBLE
merged program/data space
EXTERNAL MEMORY
(ACON.1:0 = 11b)
(ACON.5 =1)
(P4CNT = 2Fh)
(P5CNT = 07h)
(P6CNT = 27h)
(MCON = AFh)
(ACON.2 = 1)
(CKCON.2:0 = 111b)
CE7
CE6
CE5
CE4
CE3
CE2
CE1
CE0
PROGRAM
INACCESSIBLE
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