Specifications

DATA SHEET QF4A512
Rev D4, Dec 07 43 www.quickfiltertech.com
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Address 1Bh addr7 addr6 addr5 addr4 addr3 addr2 addr1 addr0
1Ch END_ADDR (Destination ending address - MSB)
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Address 1Ch X X addr13 addr12 addr11 addr10 addr9 addr8
Description: Destination ending address for block transfers.
12.6 Global Maintenance 1 Registers
Table 18. Control Register listing (Global Maintenance 1)
Hex* Register Name Description
001D – 0024h SCRATCH User scratch pad.
0025h SU_UNLOCK Lock bit for test/maintenance (factory use only)
0026h GLBL_SRST Global soft resets
0027h ADC_CTRL ADC control.
0028h AREC_CTRL AREC control.
0029h PMUX Test mux (factory use only)
002Ah DEBUG Debug (factory use only)
002Bh PCG_MNTNC Clock test (factory use only)
002Ch CAL_AFE Calibration (reserved for future use)
002Dh BIST_CTRL BIST control register (factory use only)
002Eh BIST_STATUS_0 BIST status register (factory use only)
002Fh BIST_STATUS_1 BIST Status register (factory use only)
1D - 24h SCRATCH (User scratchpad)
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Addresses 1D -24h D7 D6 D5 D4 D3 D2 D1 D0
Description: 8 bytes of space reserved for user functions. Since the 128 bytes of user data in EEPROM are not copied over to
RAM/registers these 8 bytes can be used to access the data (or any other data as required). See Chapter 11 for further information.
25h SU_UNLOCK (Test/Maintenance unlock) - Factory use only
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Address 25h X X X X X X X su_unlock
su_unlock
*0 = Locked
1 = Unlocked
Description: This bit can be read. Writing to this bit will lock the device. Locks the registers designated as “Locked”.
.
26h GLBL_SRST (Global soft resets) - Factory use only
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0