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參數(shù)資料
| 型號(hào)： | UPD77213F1-xxx-DA2 |
| 廠商： | NEC Corp. |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | 16-BIT FIXED-POINT DIGITAL SIGNAL PROCESSOR |
| 中文描述： | 16位定點(diǎn)數(shù)字信號(hào)處理器 |
| 文件頁(yè)數(shù)： | 29/74頁(yè) |
| 文件大小： | 467K |
| 代理商： | UPD77213F1-XXX-DA2 |
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Data Sheet U15203EJ3V0DS
29
μ
PD77210, 77213
5.1.2 Host boot
The boot parameter and instruction code are obtained via the host interface and transferred to the instruction
RAM.
5.1.3 Serial boot
The boot parameter and instruction code are obtained via the serial interface and transferred to the instruction
RAM.
5.2 Reboot
The contents of the instruction RAM can be rewritten by calling the following reboot entries by the program.
Parameter
Reboot Mode
Entry
Address
Number
of
Instruction
Steps
Transfer
Source Start
Address
Transfer
Destination
Transfer
Destination
Start
Address
Transfer
Destination
Page
(DPR)
X memory
0x1
R7L
DP3
R6L
DP2
R5L
Y memory
0x2
R7L
DP7
R6L
DP6
R5L
XY memories
0x3
R7L
DP3, DP7
R6L
DP2
R5L
Memory
reboot
External memory
0x4
R7L
DP3
R6L
DP2
R5L
Host reboot
0x5
R7L
R6L
DP2
R5L
Serial reboot
0x6
R7L
R6L
DP2
R5L
5.2.1 Memory reboot
The instruction code stored into data memory is transferred to the instruction RAM. Depending on the data
memory from which the instruction code is to be transferred, X memory reboot (rebooting from the X data memory), Y
memory reboot (rebooting from the Y data memory), XY memory reboot (rebooting from the X and Y data memories),
or external memory reboot (rebooting from the external data memory space) may be performed.
Perform memory rebooting by setting the following parameters and calling the entry address by the corresponding
rebooting method.
R7L: Number of instruction steps to be rebooted
DP3: First address of X memory storing instruction code (to reboot from X, XY or external memories)
DP7: First address of X memory storing instruction code (to reboot from Y or XY memories)
R6L: Transfer source data page register (DPR) (Specify 0x00 in the case of the internal data RAM area.)
Index register (for external memory rebooting)
DP2: Transfer destination address of the instruction to be rebooted (to reboot from X, XY or external memories)
DP6: Transfer destination address of the instruction to be rebooted (to reboot from Y memories)
R5L: Transfer destination page register (DPR) (Specify 0x80 in the case of the internal instruction RAM area.)
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