Toshiba H1 Series - Manual (Page 263)

TMP92CZ26A
92CZ26A-260
4. ID Read
The ID read routine is as follows:
ldw (ndfmcr0),20B0h ; WE Enable, CLE enable
ld (ndfdtr0),90h ; Write ID read command
ldw (ndfmcr0),20D0h ; ALE enable, CLE disable
ld (ndfdtr0),00h ; Write 00
ldw (ndfmcr0),2010h ; WE disable, CLE disable
ld xx,(ndfdtr0) ; Read 1'st ID maker code
ld xx,(ndfdtr0) ; Read 2'nd ID device code