MT9079 Datasheet, PDF (24/54 Pages) Mitel Networks Corporation – CMOS ST-BUS™ FAMILY Advanced Controller for E1

MT9079
Bit Name
Functional Description
3
TBUF0 Transmit Buffer Zero Connect. If one,
the contents of the transmit circular
buffer zero will be transmitted in the
corresponding time slot beginning at
the next multiframe boundary. If zero,
circular buffer zero is not connected
to this time slot. This buffer is acces-
sible only in processor and controller
modes.
2
TBUF1 Transmit Buffer One Connect. If one,
the contents of the transmit circular
buffer one will be transmitted in the
corresponding time slot beginning at
the next multiframe boundary. If zero,
circular buffer one is not connected
to this time slot. This buffer is acces-
sible only in processor and controller
modes.
1
RBUF0 Receive Buffer Zero Connect. If one,
the data of the corresponding receive
time slot will be recorded in receive
circular buffer zero beginning at the
next multiframe boundary. If zero, cir-
cular buffer zero is not connected to
this time slot. This buffer is accessi-
ble only in processor and controller
modes.
0
RBUF1 Receive Buffer One Connect. If one,
the data of the corresponding receive
time slot will be recorded in receive
circular buffer one beginning at the
next multiframe boundary. If zero, cir-
cular buffer one will not connected to
this time slot. This buffer is accessi-
ble only in processor and controller
modes.
Table 18 - Per Time Slot Control Words
(Pages 7 and 8) (continued)
Transmit Circular Buffers One and Zero (Pages 9
and A)
Page 09H, addresses 10000 to 11111 contain the 16
bytes of transmit circular buffer zero (TxB0.0 to
TxB0.15 respectively). This feature is functional only
in processor and controller modes.
The transmit circular buffers are not cleared by the
RST function, nor are they cleared by the RESET
function.
.
Bit Name
Functional Description
7-0
TxB0.n .7 - Transmit Bits 7 to 0. This byte is
TxB0.n .0 ^{transmitted on a time slot selected by}
the TBUF0 bit of the appropriate per
time slot control word. n = 0 to 15 and
represents a byte position in Trans-
mit Circular Buffer zero (TxB0).
Table 19 - Transmit Circular Buffer Zero (Page 9)
Page 0AH, addresses 10000 to 11111 contain the 16
bytes of transmit circular buffer one (TxB1.0 to
TxB1.15 respectively). This feature is functional only
in processor and controller modes.
Bit Name
Functional Description
7-0
TxB1.n .7 - Transmit Bits 7 to 0. This byte is
TxB1.n .0 ^{transmitted on a time slot selected by}
the TBUF1 bit of the appropriate per
time slot control word. n = 0 to 15 and
represents a byte position in Trans-
mit Circular Buffer zero (TxB1).
Table 20 - Transmit Circular Buffer One (Page A)
Receive Circular Buffers One and Zero (Pages B
and C)
Page 0BH, addresses 10000 to 11111 contain the 16
bytes of receive circular buffer zero (RxB0.0 to
RxB0.15 respectively). This feature is functional only
in processor and controller modes.
Bit Name
Functional Description
7-0
RxB0.n .7
-
RxB0.n .0
Receive Bits 7 to 0. This byte is
received from a time slot selected by
the RBUF0 bit of the appropriate per
time slot control words. n = 0 to 15
and represents a byte position in
receive circular buffer zero (RxB0).
Table 21 - Receive Circular Buffer Zero (Page B)
Page 0CH, addresses 10000 to 11111 contain the 16
bytes of receive circular buffer one (RxB1.0 to
RxB1.15 respectively). This feature is functional only
in processor and controller modes.
Bit Name
Functional Description
7-0
RxB1.n .7
-
RxB1.n .0
Receive Bits 7 to 0. This byte is
received from a time slot selected by
the RBUF1 bit of the appropriate per
time slot control words. n = 0 to 15
and represents a byte position in
receive circular buffer one (RxB1).
Table 22 - Receive Circular Buffer One (Page C)
4-260