DS21FF44 Maxim Integrated Products, DS21FF44 Datasheet - Page 62

• 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

TC1 TO TC32: TRANSMIT CHANNEL REGISTERS (Address = 60 to 7F Hex)
(for brevity, only channel one is shown; see Table 8-1 for other register address)
TCC1/TCC2/TCC3/TCC4: TRANSMIT CHANNEL CONTROL REGISTER
(Address = A0 to A3 Hex)
15.2. Receive Side Code Generation
On the receive side, the Receive Channel Control Registers (RCC1/2/3/4) are used to determine which of
the 32 E1 channels off of the E1 line and going to the backplane should be overwritten with the code
placed in the Receive Channel Registers (RC1 to RC32). This method allows a different 8–bit code to be
placed into each of the 32 E1 channels.
RC1 TO RC32: RECEIVE CHANNEL REGISTERS (Address = 80 to 9F Hex)
(For brevity, only channel one is shown; see Table 8-1 for other register address)
(MSB)
(MSB)
(MSB)
CH16
CH24
CH32
CH8
C7
C7
SYMBOL
SYMBOL
SYMBOL
CH1–32
C7
C0
C7
C0
CH15
CH23
CH31
CH7
C6
C6
TCC1.0–4.7
POSITION
POSITION
POSITION
CH14
CH22
CH30
CH6
C5
C5
RC1.7
RC1.0
TC1.7
TC1.0
CH21
CH29
CH13
CH5
C4
C4
MSB of the Code (this bit is transmitted first)
LSB of the Code (this bit is transmitted last)
Transmit Code Insertion Control Bits
0 = do not insert data from the TC register into the transmit
data stream
1 = insert data from the TC register into the transmit data
stream
MSB of the Code (this bit is sent first to the backplane)
LSB of the Code (this bit is sent last to the backplane)
CH12
CH20
CH28
CH4
C3
C3
62 of 117
NAME AND DESCRIPTION
NAME AND DESCRIPTION
NAME AND DESCRIPTION
CH11
CH19
CH27
CH3
C2
C2
CH10
CH18
CH26
CH2
C1
C1
(LSB)
(LSB)
(LSB)
CH17
CH25
CH1
CH9
C0
C0
TCC1 (A0)
TCC2 (A1)
TCC3 (A2)
TCC4 (A3)
RC1 (80)
TC1 (60)