Pioneer PRA-BD11 Service Manual page 82

1
Pin Descriptions
NUMBER
A
72-74, 77-81
83
84
85
86-89
91
B
92
C
93
94
D
95-97
99
NOTE: All unused inputs of the GS9023A should be connec ted to ground.
E
F
82
1
2
SYMBO L TYPE
DATA[0:7] I/O Host Inter face data bus. DATA[7] is the MSB and DATA[0] is the LSB.
RE I Read enable for Host Interface. Active LOW.
WE I Write enable for Host Interface. Active LOW.
CS I Chip select for Host Interface. Active LOW.
ADDR[3:0] I Host Interface address bus. ADDR[3] is the MSB and ADDR[0] is the LSB.
ANCI I ANCI Selection. Valid in Demultip lex Mode only. When set HIGH, each ancillar y
data packet with a DID corresponding to either the audio pac ket DID, the
extended audio pac ket DID or the arbitrary packet DID is removed from the
video signal. The data contained in the packets are output at the corresponding
pins. The various DIDs are user programmable in the internal registers and are
accessib le via the Host Interface.
NOTE: When ancillary data pac kets are deleted , the GS9023A does not
recalculate the EDH checkwords.
When set LOW, all ancillary data packets remain in the video signal.
TRS I TRS Selection. Used in conjunction wi th the VM[2:0] p ins to select video
standard format. In Multiplex Mode, whe n the TRS pin is HIGH, TRS is add ed to a
comp osite video signal. In Demultiplex Mode, when HIGH, TRS is removed from
a comp osite video signal. See Table 1.
EDH_INS I EDH Insert Selection. Valid in Multiplex Mode only. When set HIGH, the GS9023A
performs EDH functions acco rding to SMPTE RP165. When set LOW, EDH is not
inserted. This setting is logical OR with the related EDHON setting in host
interface register add ress 1h.
NOTE: Active picture and full field d ata words are updated from recalcu lated
values but error flag information is replaced with the values programmed in the
internal registers via the Host Interface.
MUTE I Audio mute. In Multiplex Mode, when set HIGH, the embedde d aud io packets
are forced to ë0í. In Demultiplex Mode, when set HIGH, the output data is forced
to "0". This setting is logical OR with the related MUTE setting in host inter face
add ress 4h.
AM[2:0] I Audio mode format. In Multiplex Mode, AM[2:0 ] indicates th e input audio data
format. In Demultiplex Mod e, AM[2:0] indicates the output aud io data format.
AM[2] is the MSB and AM[0] is the LSB. See T able 2.
ACLK I Input audio signa l clock (128 fs). Synchronous to PCLK. In non-AES/EBU audio
modes, the serial audio data is sampled on both edges of ACLK.
2
3
DESCRIPTION
PRA-BD11
3
4
4