参数资料
型号: DS26502L+
厂商: Maxim Integrated Products
文件页数: 98/125页
文件大小: 0K
描述: IC T1/E1/J1 64KCC ELEMENT 64LQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 160
类型: BITS 元件,多路复用器
PLL:
主要目的: T1/E1
输入: 时钟
输出: 时钟
电路数: 1
比率 - 输入:输出: 2:3
差分 - 输入:输出: 无/无
频率 - 最大: 6.312MHz
电源电压: 3.135 V ~ 3.465 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 托盘
产品目录页面: 1430 (CN2011-ZH PDF)
DS26502 T1/E1/J1/64KCC BITS Element
74 of 125
12.2 Alternate Sa/Si Bit Access Based on Double-Frame
On the receive side, the RAF and RNAF registers will always report the data as it received in the Sa and
Si bit locations. The RAF and RNAF registers are updated on align frame boundaries. The setting of the
receive align frame bit in status register 4 (SR4.0) will indicate that the contents of the RAF and RNAF
have been updated. The host can use the SR4.0 bit to know when to read the RAF and RNAF registers.
The host has 250
s to retrieve the data before it is lost.
On the transmit side, data is sampled from the TAF and TNAF registers with the setting of the transmit
align frame bit in status register 4 (SR4.3). The host can use the SR4.3 bit to know when to update the
TAF and TNAF registers. It has 250
s to update the data or else the old data will be retransmitted. If the
TAF an TNAF registers are only being used to source the align frame and non-align frame-sync
patterns, then the host need only write once to these registers. Data for the Si bit can come from the Si
bits of the RAF and TNAF registers, the TSiAF and TSiNAF registers, or passed through from the TSER
pin.
Register Name:
RAF
Register Description:
Receive Align Frame Register
Register Address:
56h
Bit #
7
6
5
4
3
2
1
0
Name
Si
FAS6
FAS5
FAS4
FAS3
FAS2
FAS1
FAS0
Default
0
HW
Mode
X
Bit 0: Frame Alignment Signal Bit 0 (FAS0). In normal operation this bit will be = 1.
Bit 1: Frame Alignment Signal Bit 1 (FAS1). In normal operation this bit will be = 1.
Bit 2: Frame Alignment Signal Bit 2 (FAS2). In normal operation this bit will be = 0.
Bit 3: Frame Alignment Signal Bit 3 (FAS3). In normal operation this bit will be = 1.
Bit 4: Frame Alignment Signal Bit 4 (FAS4). In normal operation this bit will be = 1.
Bit 5: Frame Alignment Signal Bit 5 (FAS5). In normal operation this bit will be = 0.
Bit 6: Frame Alignment Signal Bit 6 (FAS6). In normal operation this bit will be = 0.
Bit 7: International Bit (Si)
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DS26502L+ 功能描述:计时器和支持产品 E1/T1/J1/64Kcc Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
DS26502LB1 功能描述:计时器和支持产品 E1/T1/J1/64Kcc Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
DS26502LN 功能描述:计时器和支持产品 E1/T1/J1/64Kcc Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
DS26502LN+ 功能描述:计时器和支持产品 E1/T1/J1/64Kcc Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
DS26503 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:T1/E1/J1/64KCC BITS Element