ES29LV160F Datasheet, PDF (17/71 Pages) Excel Semiconductor Inc. – 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory

ES29LV160F
Excel Semiconductor Inc.
7.9 Autoselect Mode
The autoselect mode provides manufacturer and device identification, and sector protection
verification, through identifier codes output on DQ7–DQ0. This mode is primarily intended for
programming equipment to automatically match a device to be programmed with its corresponding
programming algorithm. However, the autoselect codes can also be accessed in-system through
the command register.
When using programming equipment, the autoselect mode requires VID (11.5 V to 12.5 V) on
address pin A9. Address pins A6, A1, and A0 must be as shown in Table 7.4. In addition, when
verifying sector protection, the sector address must appear on the appropriate highest order
address bits (see Table 7.2 on page 15 and Table 7.3 on page 16). Table 7.4 shows the remaining
address bits that are don’t care. When all necessary bits have been set as required, the
programming equipment may then read the corresponding identifier code on DQ7-DQ0.
To access the autoselect codes in-system, the host system can issue the autoselect command via
the command register, as shown in Table 10.1 on page 32. This method does not require VID. See
Command Definitions on page 25 for details on using the autoselect mode.
Table 7.4 ES29LV160F Autoselect Codes (High Voltage Method)
Description
A19 A11
A8
A5 A3
DQ8
Mode CE# OE# WE# to
to A9 to A6 to to A1 A0
to
A12 A10
A7
A4 A2
DQ15
DQ7
to
DQ0
Manufacturer ID: ESI
L
L
H
X
X
V_ID X
L
X
L
L
L
X
4Ah
Device ID:
Word L
L
H
22h
C4h
ES29LV160F
(Top Boot
X
X
V_ID X
L
X
L
L
H
Block)
Byte
L
L
H
X
C4h
Device ID:
Word L
L
H
22h
49h
ES29LV160F
(Bottom Boot
X
X
V_ID X
L
X
L
L
H
Block)
Byte
L
L
H
X
49h
Sector Protection
Verification
X
01h(protected)
L
L
H
SA
X
V_ID X
L
X
LH
L
X
00h(unprotected)
Legend
L = Logic Low = VIL, H = Logic High = VIH, SA = Sector Address, X = Don’t care
Note
The autoselect codes may also be accessed in-system via command sequences. See Table 10.1 on page 32.
Rev.0A (Dec 12, 2007) 17