參數(shù)資料
型號(hào)： KD16902
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： Virtual Surround Processor(虛擬環(huán)繞處理器)
中文描述： 虛擬環(huán)繞聲處理器（虛擬環(huán)繞處理器）
文件頁數(shù)： 30/74頁
文件大?。?/td> 327K
代理商： KD16902
KD16902 VIRTUAL SURROUND PROCESSOR
FUNCTIONAL DESCRIPTION
30
User Defined Function
The KD16902 has additional flexibility of processing user defined function. The user written program is downloaded
and executed in Mode 5. Mode 5 is divided into two stages. First, the user written program is downloaded from the
host to the internal RAM. The KD16902, then, starts execute the user defined program after accepting the corre-
sponding command from the host.
To go to other mode in Mode 5, the KD16902 must be reset using the reset command before accepting the mode
selection command. Otherwise, the KD16902 will ignore the mode selection and keep execute the user defined
function.
Program Download and Execution
The KD16902 has two internal RAM banks, RAM0 and RAM1. Each bank, with size of 1K words, is further divided
into four pages. The user is allowed to use last three pages for both banks.
The user is not allowed write to page 0
of both RAM0 and RAM1. However, reading from the page 0 is allowed.
This makes total 1.5K words of internal
RAM available for the user written codes.
After downloading, the user must configure the internal RAM into program memory and data memory. The
KD16092 uses RAM0_CFG[1:0] and RAM1_CFG[1:0] bits of ext5 register for the memory configuration. Table 3
describes the bit assignment to ext5 register. The program memory is memory mapped into program address
space. Table 25, Table 26, and Figure 20 show the memory configuration and program address map.
Table 25. Memory Configuration for RAM0
RAM0_CFG[1:0]
Data Memory
Program Memory
Program Address
00
pages 0, 1, 2, and 3
-
-
01
pages 0, 1, and 2
page 3
0x1200 to 0x12FF
10
pages 0 and 1
pages 2 and 3
0x1100 to 0x12FF
11
page 0
pages 1, 2, and 3
0x1000 to 0x12FF
Table 26. Memory Configuration for RAM1
RAM1_CFG[1:0]
Data Memory
Program Memory
Program Address
00
pages 0, 1, 2, and 3
-
-
01
pages 0, 1, and 2
page 3
0x1300 to 0x13FF
10
pages 0 and 1
pages 2 and 3
0x1300 to 0x14FF
11
page 0
pages 1, 2, and 3
0x1300 to 0x15FF
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