Mt1389 Pin Function (Audio Interface) (U201) - Cambridge Audio DVD89 Service Manual

Audio Interfac e (14)
No. Name A lt.
208 S P MC LK S C LK 0
209 S P DAT A S DIN0
210 S P LR C K S DO0
S DC S 0
211 S P B C K
AS DAT A5
213 ALR C K
214 AB C K F s 64
215 AC LK
217 AS DAT A0
218 AS DAT A1
219 AS DAT A2
220 AS DAT A3
222 AS DAT A4 INT 1#
224 MC _DAT A INT 2#
225 S P DIF
(U201) MT1389 Pin Function (Audio Interface)
Cambridge Audio DVD89 DVD Player
I/O
Audio DAC mas ter clock of S P DIF input
W hile S P DIF input is not us ed:
Inout
S erial interface port 0 clock pin
G P IO
Audio data of S P DIF input
W hile S P DIF input is not us ed:
Inout
S erial interface port 0 data-in
G P IO
Audio left/right channel clock of S P DIF input
W hile S P DIF input is not us ed:
Inout
S erial interface port 0 data-out
G P IO
Audio bit clock of S P DIF input
W hile S P DIF input is not us ed:
S erial interface port 0 chip s elect
Inout
Audio s erial data 5 part I : DS D data s ub-woofer
channel or Microphone output
G P IO
Audio left/right channel clock
Inout
T rap value in power-on res et:
4MA, P D, S MT
1 : us e external 373
0: us e internal 373
Output Audio bit clock
4MA P has e de-modulation
Inout, 4MA Audio DAC mas ter clock
Audio s erial data 0 (F ront-Left/F ront-R ight)
DS D data left channel
Inout, 4MA,
T rap value in power-on res et :
P D S MT
1 : manufactory tes t mode
0 : normal operation
Audio s erial data 1 (Left-S urround/R ight-S urround)
DS D data right channel
T rap value in power-on res et :
Inout, 4MA,
1 : manufactory tes t mode
P D S MT
0 : normal operation
W hile only 2 channels output:
G P IO
Audio s erial data 2 (C enter/LF E )
DS D data left s urround channel
T rap value in power-on res et :
Inout, 4MA,
1 : manufactory tes t mode
P D S MT
0 : normal operation
W hile only 2 channels output:
G P IO
Audio s erial data 3 (C enter-back/ C enter-left-back/C enter-right-back, in 6.1 or
7.1 mode)
DS D data right s urround channel
Inout, 4MA, T rap value in power-on res et :
P D S MT 1 : manufactory tes t mode
0 : normal operation
W hile only 2 channels output:
G P IO
Audio s erial data 4 (Down-mixed Left/R ight)
DS D data center channel
T rap value in power-on res et :
Inout, 4MA, 1 : manufactory tes t mode
P D S MT 0 : normal operation
W hile only 2 channels output:
Microcontroller external interrupt 1
G P IO
Microphone s erial input
W hile not s upport Microphone:
Inout
Microcontroller external interrupt 2
G P IO
Output, 2-16MA,
S P DIF output
S R : ON/OF F
F unc tion