Harman Kardon DVD 48, Руководство по обслуживанию

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Philips Semiconductors
SAA7893HL
Super audio media player
9397 750 10925 © Koninklijke Philips Electronics N.V. 2003. All rights reserved.
[1] Explanation of input and output ports:
IN: digital input port; all dedicated inputs are TTL tolerant.
IN1: digital input port with internal pull-up resistor.
I/O10: bidirectional port with 10 ns slew rate.
O10: 3-state (in test mode) output port with 10 ns slew rate.
APIO: analog input port.
VDDCO: analog V
DD
port (1.8 V).
VSSCO: analog V
SS
port.
GND_IO: ground for I/O pads.
VCC_IO: V
CC
for I/O pads (3.3 V).
GND_core: ground for core.
VCC_core: V
CC
for core (1.8 V).
7. Interfaces
7.1 Host interface
Different types of host busses are supported:
•
Separate address/data bus with 16-bit data bus (3 different modes)
•
Multiplexed address/data bus with 16-bit data bus (2 different modes)
•
Separate address/data bus with 8-bit data bus (1 mode).
The host interface type is set via the dedicated pins H_sel and sys_clk. The
SAA7893HL has a dedicated interrupt output pin.
7.2 Front-end interface
7.2.1 Data input interface
The SAA7893HL supports three different front-end interfaces which are selectable
via the host interface:
•
I
2
S-bus interface: the front-end interface is in essence an I
2
S-bus interface and
therefore, it has to conform to the I
2
S-bus specification.
•
FEC interface
DSD_PCM_10 119 O10 2-channel data output
DSD_PCM_9 120 O10 2-channel clock or control
DSD_PCM_11 121 O10 2-channel data output
RESETn 122 IN asynchronous reset; active LOW
H_A_sel 123 IN address select
H_A[6] 124 IN address bus
H_A[5] 125 IN address bus
H_A[4] 126 IN address bus
H_A[3] 127 IN address bus
H_A[2] 128 IN address bus
Table 2: Pin description
…continued
Symbol Pin Type
[1]
Description
157
DVD48
harman/kardon