DS21FF42 Maxim Integrated Products, DS21FF42 Datasheet - Page 60

• Manufacturer Part Number: DS21FF42
• Description: IC FRAMER T1 4X4 16CH 300-BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS21FF42

• Controller Type: T1 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

MR1/RMR2/RMR3: RECEIVE MARK REGISTERS (Address=2D to 2F Hex)
15.2.2 Per–Channel Code Insertion
The second method involves using the Receive Channel Control Registers (RCC1/2/3) to determine
which of the 24 T1 channels off of the T1 line and going to the backplane should be overwritten with the
code placed in the Receive Channel Registers (RC1 to RC24). This method is more flexible than the first
in that it allows a different 8–bit code to be placed into each of the 24 T1 channels.
RC1 TO RC24: RECEIVE CHANNEL REGISTERS
(Address=58 to 5F and 80 to 8F Hex)
(for brevity, only channel one is shown; see Table 8-1 for other register address)
RCC1/RCC2/RCC3: RECEIVE CHANNEL CONTROL REGISTER
(Address=1B to 1D Hex)
(MSB)
(MSB)
(MSB)
CH16
CH24
CH16
CH24
CH8
CH8
C7
SYMBOL
SYMBOL
SYMBOL
CH1 - 24
CH1 - 24
C7
C0
CH15
CH23
CH15
CH23
CH7
CH7
C6
RMR1.0 - 3.7
RCC1.0 - 3.7
POSITION
POSITION
POSITION
CH14
CH22
CH14
CH22
CH6
CH6
C5
RC1.7
RC1.0
CH13
CH21
CH13
CH21
CH5
CH5
C4
NAME AND DESCRIPTION
NAME AND DESCRIPTION
NAME AND DESCRIPTION
Receive Channel Mark Control Bits
0 =do not affect the receive data associated with this channel
1 = replace the receive data associated with this channel with
either the idle code or the digital milliwatt code (depends on
the RCR2.7 bit)
MSB of the Code (this bit is sent first to the backplane)
LSB of the Code (this bit is sent last to the backplane)
Receive Code Insertion Control Bits
0 = do not insert data from the RC register into the receive
data stream
1 = insert data from the RC register into the receive data
stream
CH12
CH20
CH12
CH20
CH4
CH4
C3
60 of 114
CH11
CH19
CH3
CH11
CH19
CH3
C2
CH10
CH18
CH2
CH10
CH18
CH2
C1
(LSB)
CH17
(LSB)
CH1
CH9
CH17
CH1
CH9
(LSB)
C0
RCC2 (1C)
RCC3 (1D)
RCC1 (1B)
RMR1(2D)
RMR2(2E)
RMR3(2F)
RC1 (80)