E28F320J5100 Intel, E28F320J5100 Datasheet - Page 31

• Manufacturer Part Number: E28F320J5100
• Manufacturer: Intel

NOTE:
1. When the device is configured in one of the pulse modes, the STS pin pulses low with a typical pulse width of 250 ns.
DQ 7 –DQ 2 =
DQ 1 –DQ 0 =
Configuration Codes 01b, 10b, and 11b are all pulse
mode such that the STS pin pulses low then high
when the operation indicated by the given
configuration is completed.
Configuration Command Sequences for STS pin
configuration (masking bits DQ 7 –DQ 2 to 00h) are
as follows:
Default RY/BY# level mode:
ER INT (Erase Interrupt):
PR INT (Program Interrupt):
ER/PR INT (Erase or Program Interrupt): B8h, 03h
PRELIMINARY
Pulse-on-Erase Complete
Pulse-on-Program Complete
Pulse-on-Erase or Program Complete
00 =
01 =
10 =
11 =
Reserved
STS Pin Configuration Codes
default, level mode RY/BY#
(device ready) indication
pulse on Erase complete
pulse on Program complete
pulse on Erase or Program Complete
Table 15. Configuration Coding Definitions
INTEL
Reserved
bits 7–2
®
StrataFlash™ MEMORY TECHNOLOGY, 32 AND 64 MBIT
B8h, 00h
B8h, 01h
B8h, 02h
DQ 7 –DQ 2 are reserved for future use.
default (DQ 1 –DQ 0 = 00)
— used to control HOLD to a memory controller to
prevent accessing a flash memory subsystem while
any flash device's WSM is busy.
configuration 01
— used to generate a system interrupt pulse when
any flash device in an array has completed a Block
Erase or sequence of Queued Block Erases. Helpful
for reformatting blocks after file system free space
reclamation or “cleanup”
configuration 10
— used to generate a system interrupt pulse when
any flash device in an array has complete a Program
operation. Provides highest performance for servicing
continuous buffer write operations.
configuration 11
— used to generate system interrupts to trigger
servicing of flash arrays when either erase or
program operations are completed when a common
interrupt service routine is desired.
Complete
Pulse On
RY/BY#, level mode
ER INT, pulse mode
PR INT, pulse mode
ER/PR INT, pulse mode
Program
bit 1
(1)
Complete
Pulse On
Erase
bit 0
(1)
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