T9000
Preliminary Data Sheet
November 2000
ISDN Network Termination Node (NTN) Device
8 Device Operation Control (continued)
8.1 Device Operation Register (continued)
Table 43. B2UP: B2-Channel Upstream Data from GCI to U-Interface (0x52)
Reg
R/W
Bit 7
B2UP7
—
Bit 6
B2UP6
—
Bit 5
B2UP5
—
Bit 4
B2UP4
—
Bit 3
B2UP3
—
Bit 2
B2UP2
—
Bit 1
B2UP1
—
Bit 0
B2UP0
—
B2UP
R/W
RESET Default
Bit #
Symbol
Name/Description
7—0
B2UP[7:0]
B2-Channel Upstream Data. When DFR[U_FORCE_B2UP] = 1, DFR[B2_SEL] = 1, and
ECR0[LB2] = 0, the microcontroller can write into this register the content that the user
wants to be transferred on the upstream B2 channel from GCI to the U-interface.
Table 44. B1DN: B1-Channel Downstream Data from U-Interface to GCI (0x53)
Reg
R/W
Bit 7
B1DN7
—
Bit 6
B1DN6
—
Bit 5
B1DN5
—
Bit 4
B1DN4
—
Bit 3
B1DN3
—
Bit 2
B1DN2
—
Bit 1
B1DN1
—
Bit 0
B1DN0
—
B1DN
R/W
RESET Default
Bit #
Symbol
Name/Description
7—0
B1DN[7:0]
B1-Channel Downstream Data. When GCOF1[U_FORCE_B1DN] = 1, DFR[B1_SEL] =
1, and ECR0[LB1] = 0, the microcontroller can write into this register the content that the
user wants to be transferred on the downstream B1 channel from GCI to the U-interface.
Table 45. B2DN: B2-Channel Downstream Data from U-Interface to GCI (0x54)
Reg
R/W
Bit 7
B2DN7
—
Bit 6
B2DN6
—
Bit 5
B2DN5
—
Bit 4
B2DN4
—
Bit 3
B2DN3
—
Bit 2
B2DN2
—
Bit 1
B2DN1
—
Bit 0
B2DN0
—
B2DN
R/W
RESET Default
Bit #
Symbol
Name/Description
7—0
B2DN[7:0]
B2-Channel Downstream Data. When GCOF2[U_FORCE_B2DN] = 1, DFR[B2_SEL] =
1, and ECR0[LB2] = 0, the microcontroller can write into this register the content that the
user wants to be transferred on the downstream B2 channel from GCI to the U-interface.
48
Lucent Technologies Inc.
AGERE [ AGERE SYSTEMS ]
