參數(shù)資料
型號: DS26503LN+
廠商: Maxim Integrated Products
文件頁數(shù): 58/122頁
文件大?。?/td> 0K
描述: IC T1/E1/J1 BITS ELEMENT 64-LQFP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 160
類型: BITS 元件,多路復(fù)用器
PLL:
主要目的: T1/E1
輸入: 時鐘
輸出: 時鐘
電路數(shù): 1
比率 - 輸入:輸出: 2:2
差分 - 輸入:輸出: 無/無
頻率 - 最大: 6.312MHz
電源電壓: 3.135 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-LQFP(10x10)
包裝: 托盤
產(chǎn)品目錄頁面: 1430 (CN2011-ZH PDF)
DS26503 T1/E1/J1 BITS Element
40 of 122
8. T1 FRAMER/FORMATTER CONTROL REGISTERS
The T1 framer portion of the DS26503 is configured via a set of five control registers. Typically, the
control registers are only accessed when the system is first powered up. Once the DS26503 has been
initialized, the control registers will only need to be accessed when there is a change in the system
configuration. There are two receive control registers (T1RCR1 and T1RCR2), two transmit control
registers (T1TCR1 and T1TCR2), and a common control register (T1CCR). Each of these registers is
described in this section.
8.1 T1 Control Registers
Register Name:
T1RCR1
Register Description:
T1 Receive Control Register 1
Register Address:
03h
Bit #
7
6
5
4
3
2
1
0
Name
ARC
OOF1
OOF2
SYNCC
SYNCT
SYNCE
RESYNC
Default
0
HW
Mode
0
Bit 0: Resynchronize (RESYNC). When toggled from low to high, a resynchronization of the receive side framer is initiated.
Must be cleared and set again for a subsequent resync.
Bit 1: Sync Enable (SYNCE)
0 = auto resync enabled
1 = auto resync disabled
Bit 2: Sync Time (SYNCT)
0 = qualify 10 bits
1 = qualify 24 bits
Bit 3: Sync Criteria (SYNCC)
In D4 Framing Mode:
0 = search for Ft pattern, then search for Fs pattern
1 = cross couple Ft and Fs pattern
In ESF Framing Mode:
0 = search for FPS pattern only
1 = search for FPS and verify with CRC6
Bits 4 and 5: Out Of Frame Select Bits (OOF2, OOF1)
OOF2
OOF1
Out Of Frame Criteria
0
2/4 frame bits in error
0
1
2/5 frame bits in error
1
0
2/6 frame bits in error
1
2/6 frame bits in error
Bit 6: Auto Resync Criteria (ARC)
0 = resync on OOF or RLOS event
1 = resync on OOF only
Bit 7: Unused, must be set = 0 for proper operation.
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