PORT ALLOCATIONS |
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1 |
| DETO | Input port for the weather alert signal | ||||
| detection. |
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9 |
| RESET | Input port for reset signal. |
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11 |
| CSHIFT | Outputs reference | oscillator | for | the | |
| CPU control signal. |
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| Outputs serial clock signal to the | ||||
12 |
| SCK | expander IC (MAIN unit; IC2, pin 3), | ||||
| D/A convertor IC (MAIN unit, IC5, pin | ||||||
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14 |
| SO | Outputs serial signals to the D/A con- | ||||
| vertor IC (MAIN unit; IC5, pin 8),etc. | ||||||
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15 |
| PTT | Input port for the [PTT] switch. |
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| High : While [PTT] switch is pushed. | ||||||
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16 |
| CLIN | Input port for the cloning signal. |
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17 |
| CLOUT | Outputs the cloning signal. |
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19 |
| NOIS | Input port | for noise signals (pulse | |||
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| Outputs LCD back light color control | ||||
20 |
| COLOR | signal. |
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| Low : While choosing umber color. | ||||
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21 |
| DIM1 | Outputs LCD contrast control signal. | ||||
22 |
| DIM0 | |||||
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| Input port for the remote signals from | ||||
23 |
| REMO | a remote microphone | ||||
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| the [MIC] jack. |
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26 |
| UNLK | Input port for PLL unlock signal from | ||||
| the PLL IC (MAIN unit; IC1, pin 14). | ||||||
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| COM4– | Outputs LCD common signals. |
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| COM1 |
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| KR3– | Input port for initial matrix. |
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| KR0 | Low : While keys are pushing. |
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| Input port for the remote control micro- | ||||
40 |
| EXTMIC | phone | ||||
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| Low : While | ||||
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41 |
| OPV2 | Input port for the optional unit detec- | ||||
| tion signal. |
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44 |
| PLLSTB | Outputs strobe signals to the PLL IC | ||||
| (IC1, pin 4). |
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45 |
| PLLCK | Outputs PLL IC (IC1, pin 2) clock sig- | ||||
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| • Outputs | strobe | signal | to | the |
47 |
| EXSTB | expander IC (IC2, pin 1). |
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| OPV3 | • Input port for the optional unit detec- | |||||
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| tion signal. |
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| OPT1– | I/O port for optional unit control signal. | |||||
| OPT3 | ||||||
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| Outputs | ||||
53 |
| DUSE | cy control signal when DTCS is acti- | ||||
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Pin | Port | Description | |
number | name | ||
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54 | ESCK | Outputs EEPROM (LOGIC unit; IC5, | |
pin 6) clock signal. | |||
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55 | ESDA | I/O port for the data signals from/to the | |
EEPROM (LOGIC unit; IC5, pin 5). | |||
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SEG1– | Output LCD driver signals. | ||
SEG32 | |||
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90 | CTCC | Outputs CTCSS and DTCS tone sig- | |
nal. | |||
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91 | TONE | Outputs DTMF, BEEP and 1750 Hz | |
tone signal. | |||
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95 | SQLV | Input port for the squelch level detec- | |
tion. | |||
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| Input port for the microphone up/down | |
96 | MICUD | signal while connecting the micro- | |
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| phone. | |
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97 | SD | Input port for the RSSI detection. | |
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98 | LVIN | Input port for the PLL lock voltage. | |
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99 | PDET | Input port for the power detector volt- | |
age. | |||
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100 | TEMP | Input port for the transceiver’s internal | |
tempareture detection. | |||
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