NuMicro® NUC029LEE/NUC029SEE
32-bit Arm
®
Cortex
®
-M0 Microcontroller
Aug, 2018
Page
168
of
497
Rev 1.00
N
U
MICRO
®
N
UC02
9L
E
E
/N
UC029
S
E
E
T
E
CHN
ICA
L R
E
F
E
R
E
NC
E
M
A
NU
A
L
nCS
AD[15:0]
MCLK
nRD
tACC
tASU
tAHD
nWR
AD[15:0]
ALE
tALE
tLHD tA2D
Address
output[15:0]
WData output[15:0]
RData
input
Address
output[15:0]
Figure 6.5-4 Timing Control Waveform for 16-bit Data Width
The figure above shows an example of setting 16-bit data width for EBI application. In this
example, AD0~AD15 are used to be address[15:0] and data[15:0]. When ALE signal asserts to
high, AD0~AD15 are the address output. After address is latched (tLHD), ALE signal asserts to
low and the AD bus changes to high impedance to wait device output data in read access
operation, or it is used to be write data output.