Dec RQDX: What kind of chips on it?

Can someone check to see if a RQDX2 used the Western Digital chips to interface to MFM drives? Reason I'm asking is the MFM emulator can identify an RQDX3, and also a Pro/350 controller but this particular RD52 I have (which was verified by me to run Digital Mumps) is reading as: root at beaglebone:~/mfm# ./mfm_read -a Board revision C detected Found drive at select 3 Returning to track 0 Drive RPM 3525.4 Matches count 36 for controller WD_1006 Header CRC: Polynomial 0x1021 length 16 initial value 0xffff Sector length 512 Data CRC: Polynomial 0x1021 length 16 initial value 0xffff Interleave mismatch previous entry 0, 9 was 1 now 0 Selected head 8 found 0, last good head found 7 Read errors trying to determine sector numbering, results may be in error Number of heads 8 number of sectors 18 first sector 0 Unable to determine interleave. Interleave value is not required Drive supports buffered seeks (ST412) Disk has recalibrated to track 0 Stopping end of disk search due to recalibration Number of cylinders 512, 37.7 MB Thanks! CZ