參數(shù)資料
型號: SAA7893
廠商: NXP Semiconductors N.V.
英文描述: Super audio media player
中文描述: 超級音頻媒體播放器
文件頁數(shù): 14/66頁
文件大?。?/td> 1036K
代理商: SAA7893
Philips Semiconductors
SAA7893HL
Super audio media player
Product data
Rev. 02 — 26 February 2003
14 of 66
9397 750 10925
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Manufacturer ID: B000 0001 0101
Part no: B0011 0101 0110 0100.
8.
Host interface
8.1 General description
The SAA7893HL is capable to communicate with the hosts (families) via their own
busses as given in
Table 5
.
The type of host is selected via two input pins H_sel[1] and H_sel[0] and the proc_clk
signal. In
Table 6
the settings for the different host modes are given with the expected
input clock(s).
In all modes the range of the required internal system clock is between
27 and 35 MHz.
The pin mapping in the different modes is shown in
Table 7
.
Table 5:
Name
SAD16_01
Host communications
Description
Separate Address/Data on 16-bit data bus with wait signal, based on
proc_clk
Separate Address/Data on 16-bit data bus with wait signal, based on
sys_clk and proc_clk
Separate Address/Data on 16-bit data bus without wait signal
Multiplexed Address/Data on 16-bit data bus mode 01
Multiplexed Address/Data on 16-bit data bus mode 02
Separate Address/Data on 8-bit data bus
SAD16_02
SAD16_03
MAD16_01
MAD16_02
SAD08
Table 6:
H_sel[1:0]
Clock selection
Mode
External provided clocks
sys_clk
no
yes
yes
yes
yes
yes
Internal used
system clock
proc_clk
yes
yes
logic 1
logic 0
logic 1
logic 0
00
10
01
11
11
01
SAD16_01
SAD16_02
SAD16_03
MAD16_01
MAD16_02
SAD08
proc_clk/2
sys_clk
sys_clk
sys_clk
sys_clk
sys_clk
Table 7:
SAA7893HL name
Host communication data mapping
Type
SAD16_01;
SAD16_02
IN
CPU_A(7)
IN
CPU_A(4:1)
IN
CPU_A(4:1)
IN
CPU_A(6:5)
I/O
CPU_D(7:0)
SAD08
MAD16_01
MAD16_02
SAD16_03
H_A_sel
H_A[3:1]
H_A[4]
H_A[6:5]
H_DQ[7:0]
A(11)
A(3:1)
A(4)
A(6:5)
D(7:0)
ALE
LA(2:0)
LA(3)
AD(21:20)
AD(11:4)
ALE
addr[3:1]
n.c.
n.c.
data(7:0)
LA(7)
LA(3:1)
LA(4)
LA(6:5)
LD(7:0)
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