參數(shù)資料
型號: X88064S-60
英文描述: E2 Micro-Peripheral
中文描述: E2微型外設(shè)
文件頁數(shù): 5/15頁
文件大小: 81K
代理商: X88064S-60
X88064
5
PAGE WRITE OPERATION
Regardless of the microcontroller employed, the X88064
supports page mode write operations. This allows the
microcontroller to write from one to thirty-two bytes of
data to the X88064. Each individual write within a page
write operation must conform to the byte write timing
requirements. The falling edge of WR starts a timer
delaying the internal programming cycle 100
fore, each successive write operation must begin within
100
μ
s of the last byte written. The following waveforms
illustrate the sequence and timing requirements.
μ
s. There-
Page Write Timing Sequence for WR Controller Operation
Notes:
(1) For each successive write within a page write cycle A
5
–A
12
must be the same.
t
BLC
CE
ALE
A/D
0
–A/D
7
A
8
–A
12
WR
PSEN(RD)
A
IN
D
IN
A12=n
OPERATION
BYTE 0
BYTE 1
BYTE 2
LAST BYTE
READ (1)
AFTER t
READY FOR
NEXT WRITE OPERATION
t
WC
7023 FRM F04
A
IN
D
IN
A12=n
A
IN
D
IN
A12=n
A
IN
D
IN
A12=n
A
IN
D
OUT
A12=x
A
IN
ADDR
A
IN
Next Address
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