CRC errors

What is the difference between the CRC errors which we see in the command- sh dsl interface <dsl interface name> & " sh int <dsl interface name>

-----------------------------------------------------
Router# show dsl int atm0
Alcatel 20150 chipset information
ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.1 (G.DMT)
ITU STD NUM: 0x01 0x1
Vendor ID: 'ALCB' 'ALCB'
Vendor Specific: 0x0000 0x0000
Vendor Country: 0x00 0x0F
Capacity Used: 85% 98%
Noise Margin: 13.5 dB 7.0 dB
Output Power: 9.5 dBm 12.0 dBm
Attenuation: 1.5 dB 3.5 dB
Defect Status: None None
Last Fail Code: None
Selftest Result: 0x00
Subfunction: 0x15
Interrupts: 5940 (0 spurious)
PHY Access Err: 0
Activations: 1
SW Version: 3.670
FW Version: 0x1A04
Interleave Fast Interleave Fast
Speed (kbps): 0 8128 0 864
Reed-Solomon EC: 0 0 0 0
CRC Errors: 0 0 0 7
Header Errors: 0 0 0 2
Bit Errors: 0 0
BER Valid sec: 0 0
BER Invalid sec: 0 0
------------------------------------------------------------------------------

Router# show interface atm 0
ATM0 is up, line protocol is up
Hardware is PQUICC Atom1 (with Alcatel ADSL Module)
Internet address is 15.15.15.3/24
MTU 4470 bytes, sub MTU 4470, BW 832 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ATM, loopback not set
Keepalive not supported
Encapsulation(s):, PVC mode
512 maximum active VCs, 8 current VCCs
VC idle disconnect time: 300 seconds
Last input 3d23h, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: Per VC Queueing
30 second input rate 0 bits/sec, 0 packets/sec
30 second output rate 0 bits/sec, 0 packets/sec
343791 packets input, 209797720 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 458 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
5051487 packets output, 464110057 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 output buffer failures, 0 output buffers swapped out
----------------------------------------------------------------------------

if memory serves me right the crc counter on the show dsl int will be the amount of crc's incurred in the current session,

the crc's shown on show int atm0 will show all crc's on this interface since the counters were last cleared (which as you can see from the output is never) regardless of how many sessions / resyncs have started and ended