mt90224 Zarlink Semiconductor, mt90224 Datasheet - Page 100

• Manufacturer Part Number: mt90224
• Description: 8-port Ima/tc Phy Device
• Manufacturer: Zarlink Semiconductor

Address (Hex):
Direct access
Reset Value (Hex):
Address (Hex):
Synchronized access
Reset Value (Bin:
Bit #
Bit #
15:8
15:8
4:3
1:0
...
7
6
5
2
7
2
1
0
Type
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
...
R
R
R
R
Unused. Read all 0’s.
Upon a write to this register, the bit will go to 0 and will return to 1 when the transfer is
completed
Toggle Bit. Changes its state after each rising edge of the bit 7 (ready bit).
Write 0 to initiate a transfer from the MT90222/3/4 registers to the external RAM.
Write 1 to initiate a transfer from the external RAM to the MT90222/3/4 registers.
Unused. Read all 0’s
Reserved. Write 0 for normal operation.
When bit 1 is 1, there is no access to the external RAM (no reset or read or write action
done).
When bit 1 is 0 and bit 0 is 0, then the external RAM is initialized.
When bit 1 is 0 and bit 0 is 1, then a read or write access to the external RAM is
performed, as defined by bit 5.
Unused. Read all 0’s.
Write a 1 to increment the recombiner delay of IMA Group #7. The bit will return to 0 when
the delay is adjusted. Writing a 0 has no effect.
...
Write a 1 to increment the recombiner delay of IMA Group #2. The bit will return to 0 when
the delay is adjusted. Writing a 0 has no effect.
Write a 1 to increment the recombiner delay of IMA Group #1. The bit will return to 0 when
the delay is adjusted. Writing a 0 has no effect.
Write a 1 to increment the recombiner delay of IMA Group #0. The bit will return to 0 when
the delay is adjusted. Writing a 0 has no effect.
0x0281
Used to increment the recombiner delay for an IMA Group. For MT90222 only
groups 0, 1, 2 and 3 are used.
The value is in the Guardband/Delta Delay register.
0000
0x0280
000000001X000000
Table 59 - RX External SRAM Access Control Register
Table 60 - Increment Delay Control Register
(1 reg)
(1 reg)
Zarlink Semiconductor Inc.
MT90222/3/4
100
Description
Description
Data Sheet