cx28224 Mindspeed Technologies, cx28224 Datasheet - Page 178

• Manufacturer Part Number: cx28224
• Description: Cx28224/5/9 Inverse Multiplexing For The Atm Ima Family
• Manufacturer: Mindspeed Technologies

Registers
7-78
3–0
Bit
Bit
7
6
5
4
3
2
1
0
7
6
5
4
Default
Default
0x0
—
—
—
—
0
0
0
0
0
0
0
0
0x413—IMA_ATM_UTOPIA_BUS_CTL (IMA ATM Utopia Bus Control)
0x414—IMA_DIFF_DELAY_ADDR (IMA Differential Delay Control Address)
ATM Address Mode
ATMURxSOC Three-
state Disable
ATMURxClAv Mode
ATMUTxClAv Last 4
Bytes/Words Mode
ATMUTxClAv Mode
ClAv Three-state
Disable
PHYUTxClAv Sample
Time
Control Type
Group Number
This register configures the operation of the ATM side UTOPIA bus and the sample
time of PhyUTxClAv for an IMA group.
This register is used in conjunction with 0x415 to configure the differential delay
operation of the IMA core. Register 0x414 and 0x415 are an indirect register pair in
that a particular IMA group is selected using register 0x414 and the configuration for
that IMA group is programmed using register 0x415.
Name
Name
—
—
—
—
Mindspeed Technologies
Reserved. Set to 0.
0 = Utopia Level 2 (multiple addresses)
1 = Utopia Level 1 (single fixed address, no address latching)
0 = ATMURxSOC, ATMURxData[], and ATMURxPrty three-state when not selected
1 = ATMURxSOC, ATMURxData[], and ATMURxPrty do not three-state
0 = ATMURxClAv is set active for selected channel during cell transfer
1 = ATMURxClAv is set inactive for selected channel during cell transfer
0 = ATMUTxClAv is forced inactive/active (based on the state of bit 2) during last
4 bytes/words for selected channel during cell transfer
1 = ATMUTxClAv reflects true cell available status during last 4 bytes/words for
selected channel during cell transfer
0 = ATMUTxClAv is set inactive for selected channel during cell transfer
1 = ATMUTxClAv is set active for selected channel during cell transfer
0 = ATMURxClAv and ATMUTxClAv threestate when not selected
1 = ATMURxClAv and ATMUTxClAv do not threestate
0 = For an IMA group, sample PhyUTxClAv during an ICP cell to determine SICP rate
1 = For an IMA group, delay sampling PhyUTxClAv until >5 payload byte periods
after an ICP transfer
Reserved. Set to 0.
0 = Set Delay Threshold for an IMA group
1 = Set Delay Window for an IMA group
Reserved. Set to 0.
Reserved. Set to 0.
CX28224: 0–1: IMA Group 1–2
CX28225: 0–3: IMA Group 1–4
CX28229: 0–0xF: IMA Group 1–16
Description
Description
™
CX28224/5/9 Data Sheet
28229-DSH-001-D