P R E L I M I N A R Y | AMD |
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TIR28: RSSI Lower Limit
This register is the RSSI Lower Limit register. The value in this register is compared against converted RSSI in- put values. When the converted RSSI value is equal to
or exceeds the value in this register, then an indication will be sent to the clear channel assessment logic.
Bit | Name | Reset Value | Description | |
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7 | RSALT | 0 | RSSI Equal or Above Limit. When the converted RSSI input value | |
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| equals or exceeds the value in the RSSI lower limit register, then | |
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| the Am79C930 device will set this bit to a 1. When the converted | |
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| RSSI input value is less than the value in the RSSI lower limit regis- | |
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| ter, then the Am79C930 device will set this bit to a 0. | |
RLLT[6:0] | 00h | RSSI Lower Limit. The value in this register is compared against | ||
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| converted RSSI input values. When the converted RSSI value | |
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| equals or exceeds the value in this register, then an indication will | |
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| be sent to the clear channel assessment logic. | |
TIR29: USER Pin Data
This register is the USER Pin Data register. This register allows access to the USER[4:0] pins.
Bit | Name | Reset Value | Description |
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7 | USER7DL | pin |
6 | Reserved | – |
5 | Reserved | – |
USERDT[4:0] | pin |
TIR30: Test Dummy Register
This register is the TEST dummy register.
Bit | Name | Reset Value |
USER7 pin Data. The value that is written to this bit will be inverted and then driven out to the USER7 pin of the Am79C930 device when the system interface mode is PCMCIA and the USER7EN bit of TCR14 is set to ONE. In all other cases, the value of USR7DL will have no effect on the value of the USER7 pin. The value that is read from this bit represents the inverted value of the USER7 pin of the Am79C930 device at any time in any mode.
The complete control of the function of the USER7/IRQ11 pin is de- scribed in the
Reserved. Must be written as a 0. Reads of this bit produce undefined data.
Reserved. Must be written as a 0. Reads of this bit produce undefined data.
USER Pin Data[4:0]. The value that is written to any bit of this regis- ter will be driven out to the corresponding USER pin of the Am79C930 device when the corresponding USEREN bit of TCR14 has been set to a 1 and the PCMCIA pin is set to 1. The value that is read from any bit of this register represents the current value of the corresponding USER pin of the Am79C930 device regardless of USEREN bit or PCMCIA pin settings.
The complete control of the function of each of the USER pins is de- scribed in the
Description
Reserved | – | Reserved. Must be written as a 0. Reads of this bit produce | |
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| undefined data. |
Am79C930 | 103 |
