DS21FF44 Maxim Integrated Products, DS21FF44 Datasheet - Page 55

• Manufacturer Part Number: DS21FF44
• Description: IC FRAMER E1 4X4 16CH 300-BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS21FF44

• Controller Type: E1 Framer
• Interface: Parallel/Serial
• Voltage - Supply: 2.97 V ~ 3.63 V
• Current - Supply: 300mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 300-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

CCR5: COMMON CONTROL REGISTER 5 (Address = AA Hex)
(Repeated here from Section 10.)
(MSB)
RESALGN
TESALGN
—
SYMBOL
RCM4
RCM3
RCM2
RCM1
RCM0
–
RESALGN
POSITION
CCR5.7
CCR5.6
CCR5.5
CCR5.4
CCR5.3
CCR5.2
CCR5.1
CCR5.0
TESALGN
Not Assigned. Should be set to zero when written.
Receive Elastic Store Align. Setting this bit from a zero to a
one may force the receive elastic store’s write/read pointers to
a minimum separation of half a frame. No action will be taken
if the pointer separation is already greater or equal to half a
frame. If pointer separation is less then half a frame, the
command will be executed and data will be disrupted. Should
be toggled after RSYSCLK has been applied and is stable.
Must be cleared and set again for a subsequent align (Section
17).
Transmit Elastic Store Align. Setting this bit from a zero to a
one may force the transmit elastic store’s write/read pointers to
a minimum separation of half a frame. No action will be taken
if the pointer separation is already greater or equal to half a
frame. If pointer separation is less then half a frame, the
command will be executed and data will be disrupted. Should
be toggled after TSYSCLK has been applied and is stable.
Must be cleared and set again for a subsequent align (Section
17).
Receive Channel Monitor Bit 4. MSB of a channel decode
that determines which receive channel data will appear in the
RDS0M register (Section 13).
Receive Channel Monitor Bit 3
Receive Channel Monitor Bit 2
Receive Channel Monitor Bit 1
Receive Channel Monitor Bit 0. LSB of the channel decode.
RCM4
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RCM3
NAME AND DESCRIPTION
RCM2
RCM1
RCM0
(LSB)