Pin No. | Pin Name | I/O | Function |
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55 | HLDA/ALE | O | Microprocessor mode output. (Not used.) |
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56 | MNT2 (XBUSY) | I | In the state of executive command from the CXD2662R |
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57 | VSS | — | Ground. |
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58 | (MNT1) SHCK | I | Track jump signal input from the CXD2662R |
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59 | VCC | — | Power supply. (+3.3V) |
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60 | O | ||
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61 | SDA | I/O | Data signal input/output pin with the |
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62 | BUS CLK | O | Not used. |
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63 | OE | O | Read signal output. |
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64 | BHE CASH | O | Not used. |
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65 | WE R/W | O | Write signal output. |
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66 | SCL | O | Clock signal output to the |
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67 |
| I | Disk reflection rate detection input from the reflect detection switch. H: Disk with low reflection rate |
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68 | I | ||
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69 | CS0 | O | Chip select signal output to the Flash ROM. |
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70 | CS1 | O | Not used. |
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71 | CS2 | O | Not used. |
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72 | A20 | O | Not used. |
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73 | A19 | O | Address bus signal output to Flash ROM. |
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74 | VCC | — | Power supply. (+3.3V) |
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75 | A18 | O | Address bus signal output to Flash ROM. |
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76 | VSS | — | Ground |
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77 to 85 | A17 to A9 | O | Address bus signal output to Flash ROM. |
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86 to 89 | MODEL SEL 1 to 4 | O | Not used. |
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90 | WP | O | Write protect signal to the Flash ROM. |
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91 | VCC | — | Power supply. (+3.3V) |
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92 | A8 | O | Address bus signal output to Flash ROM. |
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93 | VCC | — | Power supply. (+3.3V) |
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94 to 101 | A7 to A0 LB | O | Address bus signal output to Flash ROM. |
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102 to 113 | D15 to D4 | I/O | Data bus signal input/output to the Flash ROM. |
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114 | O | Keyboard clock ON/OFF signal output. L: OFF H: ON | |
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115 | IIC BUSY | O | IIC cable connect check. L: Active |
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116 | O | Keyboard data output. | |
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117, 118 | O | Not used. | |
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119 to 122 | D3 to D0 | I/O | Data bus signal input/output to the Flash ROM. |
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123, 124 | JOG1, JOG0 | I | Jog dial pulse input from the rotary encoder. |
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125 | LATCH(DA) | O | Not used. |
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126 | REC | O | Mute signal output when Beep Rec. |
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127 | NC | O | Not used. |
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128 | CS(FL) | O | Chip select signal output to the display driver. |
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129 | POWER(IIC) | O | Media commucator |
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130 | VSS | — | Ground. |
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131 | STB | O | Strobe signal output to the power supply circuit. H: Power supply ON: L: standby |
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132 | VCC | — | Power supply. (+3.3V) |
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133 | IOP | I | Optical |
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134 | I | Model discrimination. | |
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135 | I | Model discrimination. | |
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136 | TIMER/BEEP SW | I | Timer mode select signal input. |
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137 to 139 | KEY 3 to KEY 1 | I | Key input pin (A/D input) |
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140 | AVSS | — | Ground. (Analog) |
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141 | KEY0 | I | A/D reference voltage. |
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142 | VREF | — | Power supply. (+3.3V) |
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143 | AVCC | — | Power supply. (+3.3V) |
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144 | NC | I | Not used. |
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53
