AMD
P R E L I M I N A R Y
96
Am79C930
TIR11: Transmit Sequence Control
This register is the Transmit Sequence Control. The
bits in this register determine the function of the transmit
sequence signals.
Bit
Name
Reset Value
Description
RXCD
pin
RXC/IRQ10 pin Data. The value that is written to this bit will be
driven out to the RXC pin when the RXCEN bit of TCR15 has been
set to a 1 and the RXCFN bit of TCR28 has been set to a 0.
The value that is read from RXCD represents the current value of
the RXC/IRQ10 pin. The control of the function of the RXC/IRQ10
pin is described in the Multi-Function Pin section.
USER6/IRQ5 pin Data. The value that is written to USER6D may be
driven out to the USER6/IRQ5 pin, depending upon the values of
the USER6EN bit (TCR15[3]), the USER6FN bit (TCR7[6]), the ISA
PnP registers 70h and 71h, and the operating mode of the
Am79C930 device.
The value read from USER6D will always represent the current
value of the USER6/IRQ5 pin. The control of the function of the
USER6/IRQ5 pin is described in the Multi-Function Pinsection.
USER5/IRQ4 pin Data. The value that is written to USER5D may be
driven out to the USER5/IRQ4 pin, depending upon the values of
the USER5EN bit (TCR15[2]), the USER5FN bit (TCR7[5]), the ISA
PnP registers 70h and 71h, and the operating mode of the
Am79C930 device.
The value read from USER5D will always represent the current
value of the USER5/IRQ4 pin. The control of the function of the
USER5/IRQ4 pin is described in the Multi-Function Pinsection.
LLOCKE pin data value. The value that is written to LLOCKE may
be driven out to the LLOCKE/SA15 pin, depending upon the values
of the LLOCKEN bit (TCR14[6]), and the operating mode of the
Am79C930 device (i.e., PCMCIA or ISA).
The value read from LLOCKE will always represent the current
value of the LLOCKE/SA15 pin. The control of the function of the
LLOCKE/SA15 pin is described in the Multi-Function Pinsection.
Register Control Enable. Used to control the functional timing of
the
TXCMD
,
TXMOD
and
TXPE
pin values as defined in the
Multi-Function Pinsection. See the Multi-Function Pinsection de-
scription for each of these pins for more details.
TXMOD
pin control. Used to control the functional timing of the
TXCMD
, pin value as defined in the Multi-Function Pin section. See
the Multi-Function Pinsection description for more details.
TXPE
pin control. The TXPE bit affects the value of the
TXPE
pin as
described in the Multi-Function Pinsection.
TXCMD and
TXCMD
pin control. The TXCMD bit affects the value
of the the TXCMD and
TXCMD
pins as described in the Multi-Func-
tion Pinsection.
6
USER6D
pin
5
USER5D
pin
4
LLOCKE
pin
3
RCEN
0
2
TXMOD
0
1
TXPE
0
0
TXCMD
0