DS21Q43-ATN Maxim Integrated Products, DS21Q43-ATN Datasheet - Page 25

• Manufacturer Part Number: DS21Q43-ATN
• Description: IC FRAMER E1 QUAD 5V 128-TQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21Q43-ATN

• Controller Type: E1 Framer
• Interface: Parallel/Serial
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 32mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SR1: STATUS REGISTER 1 (Address=06 Hex)
ALARM CRITERIA Table 4-1
RSA1
(receive signaling
all ones)
RSA0
(receive signaling
all 0s)
RDMA
(receive distant
multiframe alarm)
RUA1
(receive unframed
all ones)
RRA
(receive remote
alarm)
RCL
(receive carrier
loss)
(MSB)
RSA1
ALARM
SYMBOL
RDMA
RSLIP
RUA1
RLOS
RSA1
RSA0
RRA
RCL
RDMA
over 16 consecutive frames
(one full MF) timeslot 16
contains less than three 0s
over 16 consecutive frames
(one full MF) timeslot 16
contains all 0s
bit 6 in timeslot 16 of frame 0
set to 1 for two consecutive
MFs
less than three 0s in two
frames (512 bits)
bit 3 of non-align frame set to
1 for three consecutive
occasions
255 consecutive 0s received
POSITION
SR1.7
SR1.6
SR1.5
SR1.4
SR1.3
SR1.2
SR1.1
SR1.0
SET CRITERIA
RSA0
NAME AND DESCRIPTION
Receive Signaling All Ones. Set when the contents of timeslot
16 contains less than three 0s over 16 consecutive frames. This
alarm is not disabled in the CCS signaling mode.
Receive Distant MF Alarm. Set when bit 6 of timeslot 16 in
frame 0 has been set for two consecutive multiframes. This
alarm is not disabled in the CCS signaling mode.
Receive Signaling All 0s. Set when over a full MF, timeslot 16
contains all 0s.
Receive Side Elastic Store Slip. Set when the elastic store has
either repeated or deleted a frame of data.
Receive Unframed All Ones. Set when an unframed all ones
code is received at RPOS and RNEG.
Receive Remote Alarm. Set when a remote alarm is received at
RPOS and RNEG.
Receive Carrier Loss. Set when 255 consecutive 0s have been
detected at RPOS and RNEG.
Receive Loss of Sync. Set when the device is not synchronized
to the receive E1 stream.
RSLIP
25 of 60
over 16 consecutive frames (one full
MF) timeslot 16 contains three or
more 0s
over 16 consecutive frames (one full
MF) timeslot 16 contains at least a
single one
bit 6 in timeslot 16 of frame 0 set to 0
for two consecutive MFs
more than two 0s in two frames (512
bits)
bit 3 of non-align frame set to 0 for
three consecutive occasions
in 255-bit times, at least 32 1s are
received
RUA1
CLEAR CRITERIA
RRA
RCL
RLOS
DS21Q43A
(LSB)
SPEC.
1.6.1.2
G.732
G.732
O.162
O.162
O.162
G.775
2.1.5
2.1.4
ITU
4.2
5.2