zpsd211r STMicroelectronics, zpsd211r Datasheet - Page 40
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zpsd211r
Manufacturer Part Number
zpsd211r
Description
Low Cost Field Programmable Microcontroller Peripherals
Manufacturer
STMicroelectronics
Datasheet
1.ZPSD211R.pdf
(51 pages)
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Figure 20. Timing Using R/W and E signals
See referenced notes on page 38.
PAD Input
Multiplexed
PA0-PA7 Pins
R/W as R/W
Active High
WR/V
as Address
Active Low
RD/E as E
Inputs
as I/O Pin
as I/O Pin
PA0-PA7
PB0-PB7
Direct
CSI/A19
A0/AD0-
A7/AD7
Outputs
as CSI
Any of
Any of
Any of
PP
AS
AS
(1)
(2)
or
1
23
2
ADDRESS A
35
3
STABLE INPUT
5
7
6
33
6
ADDRESS A
READ CYCLE
4
18
12
8
INPUT
INPUT
DATA VALID
9
32
19
10
13
34
23
1
2
ADDRESS B
36
STABLE INPUT
14
WRITE CYCLE
3
15
35
14
33
ADDRESS B
16
32
32
12
17
13
20
DATA
PSD211R Family
34
IN
OUTPUT
OUTPUT
37