JS28F128P30BF65 View Datasheet(PDF) - Numonyx -> Micron
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Description
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JS28F128P30BF65
Numonyx -> Micron
JS28F128P30BF65 Datasheet PDF : 90 Pages
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P30-65nm SBC
RCR contents can be examined using the Read Device Identifier command, and then
reading from offset 0x05 (see Section 7.2, “Read Device Identifier” on page 22).
Upon power-up or exit from reset, the RCR defaults to asynchronous mode.
The RCR is shown in Table 13. The following sections describe each RCR bit function.
Table 13: Read Configuration Register Description
Read Configuration Register (RCR)
Read
Mode
RES
Latency Count
RM
R
LC[3:0]
15
14
13
12
11
Bit
Name
15
Read Mode (RM)
14
Reserved (R)
13:11 Latency Count (LC[2:0])
10
WAIT Polarity (WP)
9
Data Output Configuration
(DOC)
8
WAIT Delay (WD)
7
Burst Sequence (BS)
6
Clock Edge (CE)
5:4
Reserved (R)
3
Burst Wrap (BW)
2:0
Burst Length (BL[2:0])
WAIT
Polarity
Data
Output
Config
WAIT
Delay
Burst
Seq
CLK
Edge
RES RES
Burst
Wrap
Burst Length
WP
DOC
WD
BS
CE
R
R
BW
BL[2:0]
10
9
8
7
6
5
4
3
2
1
0
Description
0 = Synchronous burst-mode read
1 = Asynchronous page-mode read (default)
Set to 0. This bit cannot be altered by customer.
000 =Code 0 reserved
001 =Code 1 reserved
010 =Code 2
011 =Code 3
100 =Code 4
101 =Code 5
110 =Code 6
111 =Code 7(default)
0 =WAIT signal is active low
1 =WAIT signal is active high (default)
0 =Data held for a 1-clock data cycle
1 =Data held for a 2-clock data cycle (default)
0 =WAIT deasserted with valid data
1 =WAIT deasserted one data cycle before valid data (default)
0 =Reserved
1 =Linear (default)
0 = Falling edge
1 = Rising edge (default)
Set to 0. This bit cannot be altered by customer.
0 =Wrap; Burst accesses wrap within burst length set by BL[2:0]
1 =No Wrap; Burst accesses do not wrap within burst length (default)
001 =4-word burst
010 =8-word burst
011 =16-word burst
111 =Continuous-word burst (default)
(Other bit settings are reserved)
11.2.1
Read Mode (RCR.15)
The Read Mode (RM) bit selects synchronous burst-mode or asynchronous page-mode
operation for the device. When the RM bit is set, asynchronous page mode is selected
(default). When RM is cleared, synchronous burst mode is selected.
Datasheet
35
Apr 2010
Order Number:208033-02
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