参数资料
型号: DS21FF42N+
厂商: Maxim Integrated Products
文件页数: 53/114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: -40°C ~ 85°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
43 of 114
SYMBOL
POSITION
NAME AND DESCRIPTION
F2HDLC
ISR.5
FRAMER 2 HDLC CONTROLLER INTERRUPT
REQUEST.
0 = No interrupt request pending.
1 = Interrupt request pending.
F2SR
ISR.4
FRAMER 2 SR1 or SR2 INTERRUPT REQUEST.
0 = No interrupt request pending.
1 = Interrupt request pending.
F1HDLC
ISR.3
FRAMER 1 HDLC CONTROLLER INTERRUPT
REQUEST.
0 = No interrupt request pending.
1 = Interrupt request pending.
F1SR
ISR.2
FRAMER 1 SR1 or SR2 INTERRUPT REQUEST.
0 = No interrupt request pending.
1 = Interrupt request pending.
F0HDLC
ISR.1
FRAMER 0 HDLC CONTROLLER INTERRUPT
REQUEST.
0 = No interrupt request pending.
1 = Interrupt request pending.
F0SR
ISR.0
FRAMER 0 SR1 or SR2 INTERRUPT REQUEST.
0 = No interrupt request pending.
1 = Interrupt request pending.
RIR1: RECEIVE INFORMATION REGISTER 1 (Address=22 Hex)
(MSB)
(LSB)
COFA
8ZD
16ZD
RESF
RESE
SEFE
B8ZS
FBE
SYMBOL
POSITION
NAME AND DESCRIPTION
COFA
RIR1.7
Change of Frame Alignment. Set when the last resync
resulted in a change of frame or multiframe alignment.
8ZD
RIR1.6
Eight Zero Detect. Set when a string of at least eight
consecutive zeros (regardless of the length of the string) have
been received at RPOS and RNEG.
16ZD
RIR1.5
Sixteen Zero Detect. Set when a string of at least sixteen
consecutive zeros (regardless of the length of the string) have
been received at RPOS and RNEG.
RESF
RIR1.4
Receive Elastic Store Full. Set when the receive elastic
store buffer fills and a frame is deleted.
RESE
RIR1.3
Receive Elastic Store Empty. Set when the receive elastic
store buffer empties and a frame is repeated.
SEFE
RIR1.2
Severely Errored Framing Event. Set when 2 out of 6
framing bits (Ft or FPS) are received in error.
B8ZS
RIR1.1
B8ZS Code Word Detect. Set when a B8ZS code word is
detected at RPOS and RNEG independent of whether the
B8ZS mode is selected or not via CCR2.6. Useful for
automatically setting the line coding.
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DS21FT42N IC FRAMER T1 4X3 12CH IND 300BGA
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