T-8110L AGERE [Agere Systems], T-8110L Datasheet - Page 75

• Manufacturer Part Number: T-8110L
• Manufacturer: AGERE [Agere Systems]

February 2004
Agere Systems Inc.
7 Frame Group and FG I/O
7.3 FGIO Control Registers
7.3.1 FGIO Data Register
The FGIO data register provides read/write access and write storage to/from any FG signals being used as gen-
eral-purpose register bits. Writes to FGIO work in conjunction with the corresponding FGIO enabled settings in the
FGx rate registers. Reads are maskable, controlled via register 0x00481.
Table 62. FGIO Data Register
7.3.2 FGIO Read Mask Register
The FGIO read mask register controls the masking of any FG signals being used as general-purpose register bits
on a read access to the FGIO register.
Table 63. FGIO Read Mask Register
Byte Address
Address
0x00480 FGIO Data Register
Byte
0x00481
FGIO Read Mask
Name
Name
Bit(s) Mnemonic
Bit(s) Mnemonic
(continued)
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
F7IOB
F6IOB
F5IOB
F4IOB
F3IOB
F2IOB
F1IOB
F0IOB
F7MEB
F6MEB
F5MEB
F4MEB
F3MEB
F2MEB
F1MEB
F0MEB
Value
Value
L
L
L
L
L
L
L
L
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Ambassador T8110L H.100/H.110 Switch
FGIO bit 7 value.
FGIO bit 6 value.
FGIO bit 5 value.
FGIO bit 4 value.
FGIO bit 3 value.
FGIO bit 2 value.
FGIO bit 1 value.
FGIO bit 0 value.
Unmask FGIO bit 7 (default).
Mask FGIO bit 7, return 0 on a read.
Unmask FGIO bit 6 (default).
Mask FGIO bit 6, return 0 on a read.
Unmask FGIO bit 5 (default).
Mask FGIO bit 5, return 0 on a read.
Unmask FGIO bit 4 (default).
Mask FGIO bit 4, return 0 on a read.
Unmask FGIO bit 3 (default).
Mask FGIO bit 3, return 0 on a read.
Unmask FGIO bit 2 (default).
Mask FGIO bit 2, return 0 on a read.
Unmask FGIO bit 1 (default).
Mask FGIO bit 1, return 0 on a read.
Unmask FGIO bit 0 (default).
Mask FGIO bit 0, return 0 on a read.
Function
Function
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