A29400B 데이터 시트보기 (PDF) - AMIC Technology
부품명
상세내역
일치하는 목록
A29400B Datasheet PDF : 34 Pages
| |||
Autoselect Mode
The autoselect mode provides manufacturer and device
identification, and sector protection verification, through
identifier codes output on I/O7 - I/O0. 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 (9.5V to 11.5 V) on address pin A9. Address
pins A6, A1, and A0 must be as shown in Autoselect
Codes (High Voltage Method) table. In addition, when
A29400B Series
verifying sector protection, the sector address must appear
on the appropriate highest order address bits. Refer to the
corresponding Sector Address Tables. The Command
Definitions table 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 I/O7 - I/O0.To access the
autoselect codes in-system, the host system can issue the
autoselect command via the command register, as shown
in the Command Definitions table. This method does not
require VID. See "Command Definitions" for details on using
the autoselect mode.
Table 4. A29400B Autoselect Codes (High Voltage Method)
Description
Mode A17 A11 A9 A8 A6 A5 A1 A0
to
to
to
to
A12 A10
A7
A2
Manufacturer ID: AMIC
X
X
VID
X
L
X
L
L
Device ID: A29400B
Word
X
X
VID
X
L
X
L
H
(Top Boot Block)
Byte
Device ID: A29400B
Word
X
X
VID
X
L
X
L
H
(Bottom Boot Block)
Byte
Continuation ID
X
X
VID
X
L
X
H
H
Sector Protection Verification
SA
X
VID
X
L
X
H
L
L=Logic Low= VIL, H=Logic High=VIH, SA=Sector Address, X=Don’t Care.
I/O8
to
I/O15
X
B3h
X
B3h
X
X
X
X
I/O7
to
I/O0
37h
B0h
B0h
31h
31h
7Fh
01h
(protected)
00h
(unprotected)
PRELIMINARY (June, 2016, Version 0.0)
7
AMIC Technology, Corp.
Share Link: 