DS4830EVKIT# Maxim Integrated, DS4830EVKIT# Datasheet - Page 18

• Manufacturer Part Number: DS4830EVKIT#
• Description: Development Boards & Kits - Other Processors DS4830 Eval Kit
• Manufacturer: Maxim Integrated

Specifications of DS4830EVKIT#

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: DS4830
• Interface Type: I2C
• Operating Supply Voltage: 3 V to 3.6 V
• Part # Aliases: 90-4830T#EVK

Figure 6. Memory Map
• Internal self-test routines
• Callable routines for in-application flash programming
Following any reset, execution begins in the utility ROM.
The ROM software determines whether the program
execution should immediately jump to location 0000h,
the start of application code, or to one of the special
routines mentioned. Routines within the utility ROM are
firmware-accessible and can be called as subroutines by
the application software. More information on the utility
ROM contents is contained in the DS4830 User’s Guide.
Some applications require protection against unau-
thorized viewing of program code memory. For these
applications, access to in-system programming, in-appli-
cation programming, or in-circuit debugging functions
Maxim Integrated
0Fh
00h
Ch
Dh
8h
9h
Bh
Eh
Fh
0h
1h
2h
3h
4h
5h
00h
00h
PERIPHERAL
REGISTERS
REGISTERS
SYSTEM
16 x 16
STACK
DPC
PFX
DP
M0
M1
M2
M3
M4
M5
AP
SP
IP
A
0Fh
1Fh
FFFFh
8FFFh
8000h
7FFFh
0000h
MEMORY SPACE
USER PROGRAM
UTILITY ROM
PROGRAM
MEMORY
32K x 16
4K x 16
Password
is prohibited until a password has been supplied. The
password is defined as the 16 words of physical program
memory at addresses 0010h–001Fh.
A single password lock (PWL) bit is implemented in
the device. When the PWL is set to 1 (power-on-reset
default) and the contents of the memory at addresses
0010h–001Fh are any value other than all FFh or 00h, the
password is required to access the utility ROM, includ-
ing in-circuit debug and in-system programming routines
that allow reading or writing of internal memory. When
PWL is cleared to 0, these utilities are fully accessible
without the password. The password is automatically set
to all ones following a mass erase.
Detailed information regarding the password can be
found in the DS4830 User’s Guide.
FFFFh
8FFFh
8000h
07FFh
0000h
Optical Microcontroller
DATA MEMORY
(BYTE MODE)
UTILITY ROM
SRAM DATA
8K x 8
2K x 8
FFFFh
8FFFh
8000h
03FFh
0000h
DATA MEMORY
(WORD MODE)
UTILITY ROM
DS4830
SRAM DATA
4K x 16
1K x 16
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