A25L05PMF-50 AMICC [AMIC Technology], A25L05PMF-50 Datasheet - Page 20

• Manufacturer Part Number: A25L05PMF-50
• Description: 8 Mbit, Low Voltage, Serial Flash Memory With 50 MHz SPI Bus Interface
• Manufacturer: AMICC [AMIC Technology]

Read Device Identification (RDID)
The Read Identification (RDID) instruction allows the 8-bit
manufacturer identification code to be read, followed by two
bytes of device identification. The manufacturer identification is
assigned by JEDEC, and has the value 37h, plus the
continuation identification for AMIC Technology. The device
identification is assigned by the device manufacturer, and
indicates the memory in the first bytes (02h), and the memory
capacity of the device in the second byte (13h).
Any Read Identification (RDID) instruction while an Erase, or
Program cycle is in progress, is not decoded, and has no effect
on the cycle that is in progress.
The device is first selected by driving Chip Select (
Then, the 8-bit instruction code for the instruction is shifted in.
Figure 14. Read Identification (RDID) Data-Out Sequence
PRELIMINARY
Q
S
C
D
Continuation ID
7Fh
High Impedance
0 1
(May 2005, Version 0.0)
Manufacture Identification
2
Instruction
3
4
5 6
Table. Read Identification (READ_ID) Data-Out Sequence
7
31 30 29
8
Manufacture ID
Continuation ID
9
10
37h
26 25 24
13
S
14
) Low.
15
23 22 21
16 17 18
Manufacture ID
19
This is followed by the 32-bit device identification, stored in the
memory, being shifted out on Serial Data Output (Q), each bit
being shifted out during the falling edge of Serial Clock (C).
The instruction sequence is shown in Figure 14. The Read
Identification (RDID) instruction is terminated by driving Chip
Select (
When Chip Select (
Stand-by Power mode. Once in the Stand-by Power mode, the
device waits to be selected, so that it can receive, decode and
execute instructions.
18 17 16
21
22 23 24 25 26
Memory Type
S
) High at any time during data output.
02h
15 14 13
Memory Type
Device Identification
S
) is driven High, the device is put in the
10
29
30
9
AMIC Technology Corp.
8
31
7
32
33
6
Memory Capacity
34
5
Device ID
2
13h
37
A25L80P
1
38
0
39