參數(shù)資料
型號(hào): SAA7708H
廠商: NXP Semiconductors N.V.
元件分類: 數(shù)字信號(hào)處理
英文描述: Car Radio Digital Signal Processor
中文描述: 汽車無線電數(shù)字信號(hào)處理器
文件頁數(shù): 52/60頁
文件大?。?/td> 281K
代理商: SAA7708H
1998 May 19
52
Philips Semiconductors
Preliminary specification
Car Radio Digital Signal Processor
SAA7708H
20.5
I
2
C memory map specification
The I
2
C Memory map contains all defined I
2
C bits. The map is split up in two different sections, hardware memory
registers and the RAM definitions. In Table 19 the preliminary memory map is depicted. Table 20 shows the detailed
memory map locations.
Table 19
I
2
C memory map
Table 20
I
2
C memory map overview
20.6
I
2
C Memory map definition
Table 21
IIC_DSP_CNTR register ($0FFF)
$8000 - $9FFF
$1000 - $7FFF
$0FFB - $0FFF
$0A00 - $0FFA
$0980 - $09FF
$0800 - $097F
$0200 - $07FF
$0180 - $01FF
$0000 - $017F
Reserved
Not Used
EPICS6
Reserved
Reserved YRAM space
YRAM
Not Used
Reserved XRAM space
XRAM
5 *16 bits
384*12 bits
384*18 bits
EPICS6
#REGISTER
IIC_DSP_CNTR
IIC_SELECTION
IIC_ADDA
IIC_LEVEL_IAC
IIC_IAC
$0FFF
$0FFE
$0FFD
$0FFC
$0FFB
NAME
BITS
DESCRIPTION
DEFAULT
BIT POS.
loopo_on_off
bypass_pll
1
1
Loopo on (1) or off (0)
Bypasses the PLL with the Oscillator clock signal
(1) or PLL active (0)
PLL clock division factor (see Table 30)
Double PLL output frequency (1)
Program Counter Reset (1)
-
off
PLL active
0
1
PLL_div
dsp_turbo
pc_reset
Not Used
4
1
1
8
176
disable
no-reset
-
5-2
6
7
15 - 8
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