CD016G0PFA Advanced Micro Devices, Inc., CD016G0PFA Datasheet - Page 14

• Manufacturer Part Number: CD016G0PFA
• Description: 16 Megabit(512 K X 32-Bit),CMOS 2.5 Volt-only Burst Mode, Dual Boot, Simultaneous Read/write Flash Memory
• Manufacturer: Advanced Micro Devices, Inc.

Device Bus Operations
Legend:
L = Logic Low = V
Notes:
1. WP# controls the two outermost sectors of the top boot block or the two outermost sectors of the bottom boot block.
2. DQ0 reflects the sector PPB (or sector group PPB) and DQ1 reflects the DYB
14
Operation
Read
Asynchronous Write
Synchronous Write
Standby (CE#)
Output Disable
Reset
PPB Protection Status (Note 2)
Burst Read Operations
Load Starting Burst Address
Advance Burst to next address
with appropriate Data
presented on the Data bus
Terminate Current Burst Read
Cycle
Terminate Current Burst Read
Cycle with RESET#
Terminate Current Burst Read
Cycle; Start New Burst Read
Cycle
IL
This section describes the requirements and use of the device bus operations,
which are initiated through the internal command register. The command register
itself does not occupy any addressable memory location. The register is com-
posed of latches that store the commands, along with the address and data
information needed to execute the command. The contents of the register serve
as inputs to the internal state machine. The state machine outputs dictate the
function of the device. Table 1 lists the device bus operations, the inputs and con-
trol levels they require, and the resulting output. The following subsections
describe each of these operations in further detail.
, H = Logic High = V
CE#
H
H
X
X
L
L
L
L
L
L
L
L
IH
, X = Don’t care.
OE#
Table 1. Device Bus Operation
H
H
H
H
X
X
X
X
X
L
L
L
A d v a n c e
WE#
H
H
H
H
H
H
H
H
X
X
L
L
S29CD016G
RESET#
H
H
H
H
H
H
H
H
H
H
L
L
I n f o r m a t i o n
CLK
X
X
X
X
X
X
X
ADV#
X
X
H
X
X
X
X
X
X
Sector Address,
A7 – A0 = 02h
Addresses
A9 = V
HIGH Z
A
A
A
A
A
X
X
X
X
X
IN
IN
IN
IN
IN
ID
S29CD016_00A0 March 22, 2004
,
Burst Data Out
(DQ0–DQ31)
00000001h,
00000000h
(unprotect)
(protected)
HIGH Z
HIGH Z
HIGH Z
HIGH Z
HIGH Z
A6 = H
A6 = L
Data
D
D
D
OUT
X
X
IN
IN