IAP_ReadID:
	mov	a,dpl		; 0390   e5 82      e.
	cjne	a,#0,IAP_ReadIDX1; 0392   b4 00 03   4..
	mov	a,#0bfh		; 0395   74 bf      t?	; Mfg ID
	ret			; 0397   22         "
;
IAP_ReadIDX1:
	cjne	a,#1,IAP_ReadIDX2; 0398   b4 01 03   4..
	mov	a,#91h		; 039b   74 91      t.	; Device ID 1
	ret			; 039d   22         "
;
IAP_ReadIDX2:
	mov	a,#4		; 039e   74 04      t.	; both ISP and IAP version number
	ret			; 03a0   22         "
;