参数资料
型号: DS21FF42
厂商: Maxim Integrated Products
文件页数: 69/114页
文件大小: 0K
描述: IC FRAMER T1 4X4 16CH 300-BGA
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 40
控制器类型: T1 调帧器
接口: 并行/串行
电源电压: 2.97 V ~ 3.63 V
电流 - 电源: 300mA
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 300-BBGA
供应商设备封装: 300-PBGA(27x27)
包装: 管件
DS21FT42/DS21FF42
58 of 114
TIR1/TIR2/TIR3: TRANSMIT IDLE REGISTERS (Address=3C to 3E Hex)
[Also used for Per–Channel Loopback]
(MSB)
(LSB)
CH8
CH7
CH6
CH5
CH4
CH3
CH2
CH1
TIR1 (3C)
CH16
CH15
CH14
CH13
CH12
CH11
CH10
CH9
TIR2 (3D)
CH24
CH23
CH22
CH21
CH20
CH19
CH18
CH17
TIR3 (3E)
SYMBOL
POSITION
NAME AND DESCRIPTION
CH1 - 24
TIR1.0 - 3.7
Transmit Idle Code Insertion Control Bits.
0 = do not insert the Idle Code in the TIDR into this channel
1 = insert the Idle Code in the TIDR into this channel
NOTE:
If CCR4.0=1, then a zero in the TIRs implies that channel data is to be sourced from TSER and a one
implies that channel data is to be sourced from the output of the receive side framer (i.e., Per–Channel
Loopback; see Figure 6–1).
TIDR: TRANSMIT IDLE DEFINITION REGISTER (Address=3F Hex)
(MSB)
(LSB)
TIDR7
TIDR6
TIDR5
TIDR4
TIDR3
TIDR2
TIDR1
TIDR0
SYMBOL
POSITION
NAME AND DESCRIPTION
TIDR7
TIDR.7
MSB of the Idle Code (this bit is transmitted first)
TIDR0
TIDR.0
LSB of the Idle Code (this bit is transmitted last)
15.1.2 Per–Channel Code Insertion
The second method involves using the Transmit Channel Control Registers (TCC1/2/3) to determine
which of the 24 T1 channels should be overwritten with the code placed in the Transmit Channel
Registers (TC1 to TC24). 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.
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