SB72-301CR NetBurner Inc, SB72-301CR Datasheet - Page 35
SB72-301CR
Manufacturer Part Number
SB72-301CR
Description
Ethernet Modules & Development Tools 32Bit 62MHz Single Board Module RJ45
Manufacturer
NetBurner Inc
Datasheet
1.S29AL008J70BFI020.pdf
(56 pages)
Specifications of SB72-301CR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 35 of 56
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11.2
February 23, 2010 S29AL008J_00_09
RY/BY#: Ready/Busy#
Notes
1. VA = Valid address for programming. During a sector erase operation, a valid address is an address within any sector selected for
2. DQ7 should be rechecked even if DQ5 = 1 because DQ7 may change simultaneously with DQ5.
The RY/BY# is a dedicated, open-drain output pin that indicates whether an Embedded Algorithm is in
progress or complete. The RY/BY# status is valid after the rising edge of the final WE# pulse in the command
sequence. Since RY/BY# is an open-drain output, several RY/BY# pins can be tied together in parallel with a
pull-up resistor to V
If the output is low (Busy), the device is actively erasing or programming. (This includes programming in the
Erase Suspend mode.) If the output is high (Ready), the device is ready to read array data (including during
the Erase Suspend mode), or is in the standby mode.
Table 11.1 on page 38
on page
and erase operations, respectively.
erasure. During chip erase, a valid address is any non-protected sector address.
43,
Figure 17.5 on page 45
CC
.
shows the outputs for RY/BY#. Figures
D a t a
No
S h e e t
Figure 11.1 Data# Polling Algorithm
and
S29AL008J
Read DQ7–DQ0
Read DQ7–DQ0
Figure 17.6 on page 46
DQ7 = Data?
DQ7 = Data?
Addr = VA
Addr = VA
DQ5 = 1?
START
FAIL
No
Yes
No
Yes
Yes
Figure 17.1 on page
shows RY/BY# for read, reset, program,
PASS
42,
Figure 17.2
35
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