MB86330 Fujitsu Media Devices Limited, MB86330 Datasheet - Page 33
MB86330
Manufacturer Part Number
MB86330
Description
16-bit Fixed-point DSP
Manufacturer
Fujitsu Media Devices Limited
Datasheet
1.MB86330.pdf
(46 pages)
- Current page: 33 of 46
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1. BOOT Mode
2. Setting BOOT Mode
BOOT mode supports the following functions.
• Ordinary BOOT function (Booting the instruction RAM (48 kwords)/the table RAM (16 kwords))
• Simplified BOOT function (Booting some instruction RAMs)
Only single chip mode is available.
(1) Command Setup
Load the ERAM area (FFE0
• Address FFE0: Command contents
• Address FFE1: Start address
• Address FFE2: Size
• Address FFE3: Execution start address
(2) Ordinary BOOT function (Command = other than 0001
The ordinary BOOT function loads a full-word program (48 kwords) and table data (16 kwords), then moves
execution to the user program (jump to address FFFE) or ICE (jump to address 0002).
(3) Simplified BOOT function (Command = 000C
The Simplified BOOT function loads and executes a program of 48 k or fewer words.
It also sets loaded start address (FFE1
(FFE3
BOOT
0001
000C
000D
Others
Specify the start address of a program to be booted during simplified booting.
Specify the program size of a program to be booted during simplified booting.
Specify an execution start address after completion of simplified booting.
H
H
).
H
H
to 000B
to 0010
H
H
: Reserved
: Simplified booting
: Reserved
: Ordinary booting
H
to FFE3
H
: PAGE1-0 = 11) with the following contents during booting.
H
), the number of program words (FFE2
H
)
H
to 0010
H
)
H
), and execution start address
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MB86330
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