HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
43
• IC Pin Function Descriptions
USB BOARD IC901 LC87F1JJ2AU-SQFP-H (USB CONTROLLER)
Pin No. Pin Name I/O Description
1 P73 O Not used. (Open)
2
RES — USB control reset pin
3 XT1 — Not used. (Connect to VDD)
4 XT2 O Not used. (Open)
5 VSS1 — Ground
6 CF1 I Oscillation signal input (12 MHz)
7 CF2 O Oscillation signal output (12 MHz)
8 VDD1 — Power supply pin (+3.3 V)
9 SO0 O CD digital signal processor serial data communication signal output
10 SI0 I CD digital signal processor serial data communication signal input
11 SCK0 I/O CD digital signal processor clock communication signal input/output
12 SO1 O Not used. (Open)
13 SI1 O Not used. (Open)
14 SCK1 O Not used. (Open)
15 P16 I CD digital signal processor enable communication signal input
16 P17 O Not used. (Open)
17 MCLKI O Not used. (Open)
18 MCLKO O Not used. (Open)
19 VDD2 — Power supply pin (+3.3 V)
20 VSS2 — Ground
21, 22 P00, P01 O Not used. (Open)
23 to 25 DBGP0 to DBGP2 O For debagger pin
26 SDAT I USB record MP3 serial data signal input
27 BCLK I USB record MP3 serial data shift clock signal input
28 LRCK I USB record MP3 serial data word clock signal input
29, 30 P20, P21 O Not used. (Open)
31 P22 O USB playback serial data signal output
32 P23 O USB record MP3 serial data request signal output
33 P24 O USB playback serial data communication clock signal output
34 to 36 P25 to P27 O Not used. (Open)
37 UHD– I/O USB D– serial data input/output
38 UHD+ I/O USB D+ serial data input/output
39 VDD3 — Power supply pin (+3.3 V)
40 VSS3 — Ground
41 UFILT I USB interface PLL fi lter circuit connection pin (Fixed at L in this set)
42 AFILT O Not used. (Open)
43 P32 O Not used. (Open)
44 URX1 I System controller input communication signal input
45 UTX1 O System controller output communication signal output
46 P70 I USB playback serial data request signal input
47 P71 I USB controller command processing cancel signal input
48 P72 O Not used. (Open)
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