UPD9903 Datasheet, PDF (15/28 Pages) NEC – UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC

µPD9903
(3) PCM data reception timing (HWR pin)
(a) DCLK is later than FS
tR
FS
tWHS
tCSD2
tCY
tR
tDCLK
tF
DCLK
1
2
tDSR
tDCLK
tDHR
tR, tF
HWR
Note
MSB Note 2nd
7th
(PCM data)
Note Don’t care
(b) FS is later than DCLK
8
Note
8th
tF
9
Note
FS
tCSD1
tWHSC
DCLK
1
2
8
9
15