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Pin No. | Pin Name | I/O | Description |
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46 |
| XRAS | O | Row address strobe signal output to the | “L” active | ||
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47 |
| XWE | O | Write enable signal output to the | “L” active | ||
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48 |
| D1 | I/O |
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49 |
| D0 | I/O |
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50 |
| D2 | I/O |
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51 |
| D3 | I/O |
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52 |
| MVCI | I (S) | Digital in PLL oscillation input from the external VCO | Not used (fixed at “L”) | ||
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53 |
| ASYO | O | Playback EFM |
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54 |
| ASYI | I (A) | Playback EFM asymmetry comparator voltage input terminal | |||
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55 |
| AVDD | — | Power supply terminal (+3.3V) (analog system) |
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56 |
| BIAS | I (A) | Playback EFM asymmetry circuit constant current input terminal | |||
57 |
| RFI | I (A) | Playback EFM RF signal input from the CXA2523AR (IC101) | |||
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58 |
| AVSS | — | Ground terminal (analog system) |
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59 |
| PCO | O (3) | Phase comparison output for master clock of the recording/playback EFM master PLL | |||
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60 |
| FILI | I (A) | Filter input for master clock of the recording/playback master PLL | |||
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61 |
| FILO | O (A) | Filter output for master clock of the recording/playback master PLL | |||
62 |
| CLTV | I (A) | Internal VCO control voltage input of the recording/playback master PLL | |||
63 |
| PEAK | I (A) | Light amount signal (RF/ABCD) peak hold input from the CXA2523AR (IC101) | |||
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64 |
| BOTM | I (A) | Light amount signal (RF/ABCD) bottom hold input from the CXA2523AR (IC101) | |||
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65 |
| ABCD | I (A) | Light amount signal (ABCD) input from the CXA2523AR (IC101) | |||
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66 |
| FE | I (A) | Focus error signal input from the CXA2523AR (IC101) |
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67 |
| AUX1 | I (A) | Auxiliary signal (I3 signal/temperature signal) input from the CXA2523AR (IC101) | |||
68 |
| VC | I (A) | Middle point voltage (+1.65V) input from the CXA2523AR (IC101) | |||
69 |
| ADIO | O (A) | Monitor output of the A/D converter input signal | Not used (open) | ||
70 |
| AVDD | — | Power supply terminal (+3.3V) (analog system) |
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71 |
| ADRT | I (A) | A/D converter operational range upper limit voltage input terminal (fixed at “H” in this set) | |||
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72 |
| ADRB | I (A) | A/D converter operational range lower limit voltage input terminal (fixed at “L” in this set) | |||
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73 |
| AVSS | — | Ground terminal (analog system) |
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74 |
| SE | I (A) | Sled error signal input from the CXA2523AR (IC101) |
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75 |
| TE | I (A) | Tracking error signal input from the CXA2523AR (IC101) | |||
76 |
| DCHG | I (A) | Connected to the +3.3V power supply |
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77 |
| APC | I (A) | Error signal input for the laser automatic power control | Not used (fixed at “H”) | ||
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78 |
| ADFG | I (S) | ADIP duplex FM signal (22.05 kHz ± 1 kHz) input from the CXA2523AR (IC101) | |||
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79 |
| F0CNT | O | Filter f0 control signal output to the CXA2523AR (IC101) | |||
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80 |
| XLRF | O | Serial data latch pulse signal output to the CXA2523AR (IC101) | |||
81 |
| CKRF | O | Serial data transfer clock signal output to the CXA2523AR (IC101) | |||
82 |
| DTRF | O | Writing serial data output to the CXA2523AR (IC101) |
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83 |
| APCREF | O | Control signal output to the reference voltage generator circuit for the laser automatic power | |||
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84 |
| LDDR | O | PWM signal output for the laser automatic power control | Not used (open) | ||
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85 |
| TRDR | O | Tracking servo drive PWM signal | |||
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86 |
| TFDR | O | Tracking servo drive PWM signal (+) output to the BH6511FS (IC152) | |||
87 |
| DVDD | — | Power supply terminal (+3.3V) (digital system) |
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88 |
| FFDR | O | Focus servo drive PWM signal (+) output to the BH6511FS (IC152) | |||
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89 |
| FRDR | O | Focus servo drive PWM signal | |||
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90 |
| FS4 | O | Clock signal (176.4 kHz) output terminal (X’tal system) | Not used (open) | ||
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* I (S) stands for schmitt input, I (A) for analog input, O (3) for
