DS21458LDK Maxim Integrated, DS21458LDK Datasheet - Page 53
![no-image](/images/no-image-200.jpg)
DS21458LDK
Manufacturer Part Number
DS21458LDK
Description
Network Controller & Processor ICs
Manufacturer
Maxim Integrated
Datasheet
1.DS21458LDK.pdf
(269 pages)
- Current page: 53 of 269
- Download datasheet (2Mb)
10. T1 FRAMER/FORMATTER CONTROL REGISTERS
The T1 framer portion of the DS21455/DS21458 is configured via a set of nine control registers.
Typically, the control registers are only accessed when the system is first powered up. Once the device
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 (T1CCR1). Each of these
registers is described in this section.
10.1 T1 Control Registers
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
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).
Bit 2/Sync Time (SYNCT).
Bit 3/Sync Criteria (SYNCC).
Bits 4 to 5/Out-of-Frame Select Bits (OOF2, OOF1).
Bit 6/Auto Resync Criteria (ARC).
Bit 7/Unused, must be set to zero for proper operation.
OOF2
0
0
1
1
0 = auto resync enabled
1 = auto resync disabled
0 = qualify 10 bits
1 = qualify 24 bits
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
0 = resync on OOF or RCL event
1 = resync on OOF only
OOF1
—
7
0
0
1
0
1
ARC
T1RCR1
T1 Receive Control Register 1
03h
6
0
OUT-OF-FRAME CRITERIA
2/4 frame bits in error
2/5 frame bits in error
2/6 frame bits in error
2/6 frame bits in error
OOF1
5
0
OOF2
4
0
53 of 269
SYNCC
3
0
DS21455/DS21458 Quad T1/E1/J1 Transceivers
SYNCT
2
0
SYNCE
1
0
RESYNC
0
0
Related parts for DS21458LDK
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![DS21458+](/photos/6/50/65053/256-csbga_21-0315_tmb.jpg)
Part Number:
Description:
IC LIU QUAD T1/E1/J1 256-CSBGA
Manufacturer:
Maxim Integrated Products
![DS21458](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Network Controller & Processor ICs Quad E1-T1-J1 Single -Chip Transceiver (S
Manufacturer:
Maxim Integrated Products
![DS21458-W+](/images/no-image3.png)
Part Number:
Description:
Network Controller & Processor ICs
Manufacturer:
Maxim Integrated
Datasheet:
![DS21](/images/no-image3.png)
Part Number:
Description:
power light source Luxeon Line
Manufacturer:
LUMILEDS [Lumileds Lighting Company]
Datasheet:
![MAX3261CCJ](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Single +5V, fully integrated, 1.25Gbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
![MAX3263CAG](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Single +5V, fully integrated, 155Mbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
![MAX7528KCWP](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
MAX7528KCWPMaxim Integrated Products [CMOS Dual 8-Bit Buffered Multiplying DACs]
Manufacturer:
Maxim Integrated Products
Datasheet:
![MAX8809AETL+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM Controllers with Integrated Dual MOSFET Drivers
Manufacturer:
Maxim Integrated Products
Datasheet:
![MAX1535CETJ+T](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Highly Integrated Level 2 SMBus Battery Chargers
Manufacturer:
Maxim Integrated Products
Datasheet:
![DS2741N+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Current Monitor and Accumulator with Integrated Sense Resistor; ; Temperature Range: -40°C to +85°C
Manufacturer:
Maxim Integrated Products
![MAX13450EAUD+T](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
![MAX13451EAUD+T](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
![MAX17497BATE+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
QFN 16/A°/AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step
Manufacturer:
Maxim Integrated Products
![MAX17502FATB+T](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
TDFN/A/65V, 1A, 600KHZ, SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED SWI
Manufacturer:
Maxim Integrated Products